Fighting for Air (2018) - full transcript

We know that the air is toxic,

so we have to try and do something.

I'm now looking at you as a man
who is basically pumping poison gas

into these people's homes.

Research shows that your fear
is unwarranted.

You cannot just go bang into
something.

Don't talk on behalf of me when
you're talking about businesses.

Have you done stuff like
this before?

Not in this way, not in such
a dynamic experiment in a city.

We've got some data coming in,

but it's hard to say exactly what's
happened yet.



THEY COUGH AND SPLUTTER

Do you think it's going to work?

Are you optimistic?

# Well, he feels like an elephant

# Shaking his big grey trunk
for the hell of it... #

Air pollution.

It's everywhere,
it affects all of us

and you have to go to extreme
lengths if you want to avoid it.

Right now, I'm totally protected
from all the fumes from these cars

because this mask contains
filters that are

designed for chemical warfare.

This is military-grade technology.

So at the moment, I'm breathing
the cleanest air possible.

This air contains high levels of
harmful pollution from industry



and construction, but here,
mostly from vehicles.

To test just how dangerous
the air we breathe is,

I'm first having to detox -
free my body of pollution.

For the past 12 years,
Dr Mark Miller has been

investigating exactly how
traffic pollution affects us.

I'm his latest lab rat.

You should be breathing nice,
clean air at the moment.

So we'll do all these tests,
and then, after that,

we'll take the suit off,
we'll repeat all the tests again

and, hopefully, we might see that
air pollution actually affects

some of the things we've
been looking at.

Mark will analyse my blood,

record my heart rate and even test
how well my brain is working.

Having done the tests
pollution-free,

it's time to expose myself...

..and get a lungful of
unfiltered city air.

HE COUGHS

After three hours,
I rerun the same set of tests.

So, can you talk me through
the results?

So, what we did see was
consistently higher blood pressure

once you've had your period
of air pollution exposure.

Your blood was a little bit
more likely to clot,

so it was, like,
a little bit thicker.

You have a slightly
higher blood pressure,

your arteries are a little bit
more constricted,

a little bit more tense.

That's the sort of thing you would
see, perhaps, if you were ageing,

when you get a little bit older.

If you were someone with
heart disease,

that does actually increase your
risk of having a heart attack.

I guess that, to me,
is very shocking.

They're very small changes, but
my arteries have got a bit stiffer,

my blood pressure has gone up
and my blood has got stickier.

I would be very worried about
those changes.

And what about the cognition test?

Is my thinking worse after
the pollution than it was before?

There were signs that
thinking was slower,

a little bit more dampened down.

Maybe not quite so sharp as
you would have been

before you'd had the
air pollution exposure.

Although this was a one-off,
my results demonstrate the problem.

Given that the whole urban
population is exposed long-term,

the consequences are terrifying.

In the UK alone,

air pollution kills 40,000 people
prematurely every year.

It affects our brains, our blood,

our arteries and, of course,
our lungs.

Scientists and MPs agree it is
a public health emergency.

What we do about it is
causing debate.

I'm on my way to a suburb of
Birmingham called Kings Heath.

Like lots of built-up areas
in the UK,

the air quality around here
is pretty atrocious.

Lots of people have been trying
to improve our air quality -

governments, local councils,
even businesses -

but so far, it's a problem
that isn't going away.

So I want to see if one community
can make a difference.

I want to see if people power can
give us the clean air we need.

We're here because Kings Heath
is a small suburb

with a big traffic problem.

Despite a series of
motorways and ring roads,

many drivers use
Kings Heath High Street

as a rat run into the city centre.

Sat-navs have only made that worse.

We've tested the air here and,
like many high streets,

it's on the cusp of the legal limit.

Right now, I am breathing in
a cocktail of nasty substances.

There's loads of bad things
in the air here.

But two of the big ones are
the nitrogen oxides,

those are called NOx,
and particulate matter, or PMs.

Those are coming out of
the exhaust of the cars, the buses,

the lorries,
and they're all bad for you.

You can't see them,
you can smell them,

but every breath I'm taking
is doing me harm.

This is the perfect place to try
and make a change.

We're taking a gamble.

We've booked the local church hall
to have a meeting about air quality.

But do people here care?

We're making a film about
air pollution in the region,

we're trying to get people to come
to a meeting at six o'clock.

Do you live locally? No, we don't.

You don't care? All right.
Can you come at six o'clock?

No, we can't.
You can't make it at six?

No, we have other meetings.
We have meetings.

We're having a meeting about
air pollution on the high street.

Oh, no, thank you, I'm fine.
No? I've got my inhaler out.

You've got your inhaler!
Can I give you a flyer, at least?

Will you look at the flyer?
You are really wheezing.

Oh, it's not due to pollution.
Are you sure? Yeah, yeah.

So, some interest in my flyers,

but the weather has taken a turn for
the worse and I am slightly nervous

no-one's going to show up.

But, by six o'clock, the room
is filling up and it looks as if

it might be a full house.

APPLAUSE

Hi, everybody.

Thank you very, very much
for coming.

Air pollution is increasingly
in the news at the moment and

I think it's easy to think that
air pollution is either something

that affects people in Shanghai
or people who live next to

a factory or a power station
and not that it affects us.

But actually,
it is a local problem here

and in most urban centres.

Children's lungs get stunted.

These chemicals will thicken
your blood, inflame your arteries,

make your heart more likely
to beat irregularly,

make you more likely to have
a stroke or a heart attack,

make you more likely to
develop asthma or,

if you already have asthma,
have an asthma attack,

and they will shorten your life.

I'm sorry, I know we've got
young people in the audience,

but this is the world you're
living in. And the good news is,

there's lots of things
we can do about it.

Yeah, I think we've become more
aware of it in recent years

when we found out that Kings Heath
High Street was the third or fourth

worst street for air pollution
in the city.

That was a big shock.

I don't find that Kings Heath
High Street is a place

that I want to be.

I avoid driving down it,
walking down it.

I don't find it a nice place to be.

I think one of the problems is we
don't know the scope of the problem.

We know general statistics, we know
so many millions of people die,

what we don't know is exactly
what's happening on the high street.

We can't allow more cars
to block up our roads.

Communities don't work that well

when you've got streets that
have busy traffic.

You had your hand up while
that was being said.

We are what we are in Kings Heath.

It's a great place to live.

And if you start messing about with
Kings Heath, businesses will close.

I'm 75, I've worked on
the high street all my life,

fit as a fiddle. But...

..think carefully what they do
in Kings Heath.

As far as I understand what you're
saying, if you restrict cars,

businesses will lose customers,
businesses will close,

and you can destroy a neighbourhood.

You can destroy a neighbourhood,
yes.

As a business owner,
I'm excited by the opportunity that

changes that can impact air quality
and the quality of life

of my customers in this area,
really excites me.

And I'm not scared of that change,
scared of trying other things.

What I'd really like to do is build
towards an experiment where,

on one big day,

we can try to make a really
noticeable difference

in the air quality on
the high street.

If we can do that,
then we can show Birmingham,

we can show the whole of the UK and
maybe even the whole of the world,

that this is possible to do.

That's the bit where you're all
meant to stand up and cheer and cry

and throw your... Anyway.
LAUGHTER

Is everyone, then, willing to
join us and try to achieve

a day where we can drive
the air pollution down

and prove that it is possible
in a sustainable way?

AUDIENCE ASSENTS

Personally, I feel...

..I don't know,
excited and apprehensive.

Does anyone else feel that way?
LAUGHTER

OK. Thank you very,
very much indeed.

It's gone better than I'd hoped and,
within days,

a number of residents
have come forward, keen to see

what can be done about
their high street.

Sara Aboutorabi is an urban designer
who lives in Kings Heath.

To tackle the air pollution problem,
we need to change people's habits.

And I'm guilty of that,
I hop in the car everywhere.

Cars are just absolutely jammed
on the high street.

It's made me conscious to use
the car less and walk more.

Peter Edwards is Kings Heath
born and bred.

He works for Birmingham University.

We will always have naysayers
who say, you can't see it,

or in the '60s there was smog and
it was dirty and you could see it.

Well, I know from reading that
it's scientifically proven

that it is there
and it is killing people.

Stan Hems is the local butcher.

He's one of those who thinks
pollution is far less of a problem

than it was in the past.

The pollution has got a lot better.

We'd have to clean this counter
a four or five times a day

because of the fumes and
the pollution of the high street.

Now, look,
no-one has cleaned it yet.

My hands are clean.

Mohammed Farid runs
the local taxi service,

Kate Goodall is a business manager,

and Cat Watton is an architect
who lives and works here.

It is fair to say that
she's not a fan of cars.

The high street is
a very hostile place

both for pedestrians, for cyclists,

but also lots of other people.

So, yeah, in my own utopia,

I would be looking to completely
block private cars.

And the team is meeting in a cafe

run by local resident
James Connolly.

They're not short of ideas
or opinions,

but they do agree that
the high street can be improved,

and I found a great person
to help them out.

Hey, everybody. ALL: Hello.

I have brought Roland with me.
Evening, everyone.

Roland Leigh is a professor
of air quality from

the University of Leicester.

This street, this area, is very
typical of somewhere

where you actually have control of
a lot of what is produced

and a lot of the impacts on health
will be because of local traffic.

So we definitely have a situation
here that's worth some action

and worth some management
in terms of human exposure.

THEY LAUGH

What would you like to do about it?

Reduce the buses in the daytime,
the middle of the day.

You've got three buses
come together,

one is full and the other three,

there's two people
and three people on them.

There are far too many buses
at daytime anyway,

especially when the kids are coming
out of school and all that.

There is so much traffic there.

Some of the residents think that
parking on the busy high street

causes a lot of the congestion
and therefore the pollution.

Actually, we should be making it
more difficult to park,

unfortunately,
and I think actually having... Why?

Because parking is
what we want to...

We're talking about an issue
where we've got pollution from

individual private cars.

This is potentially
an effective thing? Yes.

Anything that keeps
traffic flowing in general,

anything that doesn't stop,

particularly
the large diesel engines.

The parking isn't for hours.

Some people are there for
two minutes, three minutes.

They go in the Post Office,

buy some stamps and a card
and they're back out in the car.

So that parking space
is changed over...

It's stopping the traffic
and therefore

creating more air pollution... No.

Traffic lights stop the traffic.

So, shouldn't pedestrians
cross the road?

We should just let cars go
free rein?

A lot of people have invested
a lot of money in Kings Heath.

I'm one of them.

Look, I want cleaner air
for myself. Honestly, I do,

but you have got to do everything
in moderation.

You cannot just go bang
into something.

I think for the day of action,
removing those spaces,

it's one day, it's an experiment.

If it's a total disaster,
we'll know,

you'll be proved right,

but it will be very interesting
to see the net effect.

I actually think we've got a real
great opportunity to make a bit of

a sea change in people's habits.

I guess my professional
experience is that I tell people

all the time to do things that will
be good for them, like,

do more exercise, lose some weight,
eat your greens, stop smoking,

and they always ignore me
completely.

I feel...

I don't want to say pessimistic,
but this is terrifying to me,

all the things you want to do.
THEY LAUGH

But I am totally blown away by the
ambition in the room from everyone,

so that is very exciting.

The group decides on a date
for their big experiment,

just four weeks away.

To see if they make any impact,

Roland is going to measure
the pollution around Kings Heath

before and during the experiment.

I feel like almost what we've got to
do is step out into the traffic

and just go, "No, no, sorry,
you've all got to go home,"

and that's going to be
very hard to do.

OK, do you think they can succeed
or not?

I would be optimistic and say,
yes, they can.

Really? I am keen to see.

It will be a fantastic experiment
to find out whether they will.

The power of community organising,
right?

That's what we are going to see.

Have you done stuff
like this before?

Not in this way. Not in such
a dynamic experiment in a city.

And has this been done before?

Not to this extent.

So there have been individual
traffic measures

where people have changed
the traffic flow

and looked at the impact,
but not when you start to think

about all the different ways
a community can choose to act.

No pressure, then.

The trouble with pollution from
most modern vehicles

is that it is usually invisible,

but you can see it if you
know how to look.

This is a special thermal camera

with filters that highlight
carbon dioxide.

Other toxic gases in the exhaust
fumes behave in a similar way.

And the results are shocking.

Massive plumes from buses, cars,
and, most worrying of all,

And it's when they pull away that
the worst pollution comes out.

Diesel engines are the monster
polluters of our roads.

It's diesels rather than petrol
engines that pump out

the NOx and particulate matter
that damage our health.

From 2001 until November last year,

the UK Government was offering
tax breaks on diesel vehicles

in order to combat global warming.

That's because they emit less
carbon dioxide than petrol vehicles.

And it worked a treat.

The numbers exploded and there are
now over 11 million diesel vehicles.

That's 40% of everything
on the road.

Cafe owner James wants to get people
out of their cars altogether,

but he's worried that if we talk
about pollution too much,

it will scare people away from

walking and cycling
in the urban air.

I think people feel that they are
more protected in their cars

from pollution on the outside.

It doesn't feel like it gets in
the car and you've got a nice,

safe bubble that you're sitting in.

And actually, when you're at
the side of the road,

people can feel, smell, taste
the pollution on the high streets.

I want to challenge James' ideas
about cars.

EU regulations should already be

making each new generation of
diesels cleaner,

but can the way you drive
make a real difference to how much

pollution comes out the back end?

To find out, I'm getting James to

take me for a spin around
Kings Heath.

So, James, in this car,

I have a machine that is
the absolute cutting edge of

emissions measurement technology.
OK.

Here, have a look.
I mean, it is pretty cool.

Whoa! That looks pretty fantastic.

That is amazing, right?
It is, yeah.

So, the really clever thing about
this is that it can give you

the NOx output of the car
in real-time.

I'm going to give that feedback
to you while we drive around

and we're going to see if we can do
something about it.

Okey dokey. All right?
So you are behind the wheel.

So it is very dramatic...

..the differences that I can see
in your driving. OK.

Don't change anything,
just drive completely normally.

Do what you're normally doing,
but I will just tell you,

every time you pull away,
every time you accelerate,

you are going from NOx production
ticking along at about 150 up to...

Well, the last time you pulled away
from the lights,

it was more than 1,500.

So you've gone up ten times.

And it wasn't an aggressive
acceleration. No, no.

It was normal.

You are being a completely
normal driver.

But even that, where you were
accelerating quite gently there,

that was up to 700.

Now, this road with speed bumps
is interesting.

Basically, every speed bump is
a little belch of NOx.

OK. You haven't had...

I mean, what's very clear from this
graph is you have not had

a single second of steady driving

where you're just cruising along
at the same speed. No.

You're always accelerating or
decelerating. Yes.

There we go, Johnstans Butchers.

There you go.
Big, huge spike for Stan,

and it wasn't you doing that
deliberately.

No, not at all!

I mean, it's awful because I know
it's not your fault,

but I'm now looking at you as a man
who is basically pumping poison gas

into these people's homes.

That's not a nice person to be.

I don't want to be that guy.

You are that guy.
I can prove it here, as well. OK.

So if you drive very steadily
along here, just keep your speed.

Careful now. Just go...
You're now ticking along.

Just gently, gently, gently.

You coasted all the way down here,

you haven't had a single spike on
that bit of high street and you're

behind the car in front,
just the way you would have been.

So, what we're also saying, then,

is it's not just about the type of
vehicle you're in,

it's about the driving style which
is really, really important. Yes.

So that was better. Thank you.

But it was really hard to try
and balance that out.

I mean, you almost want it to give
you a little electric shock

every time you accelerated hard.

I'm not sure car manufacturers
would go in for that!

When James drove more smoothly,
he dumped about 50% less NOx.

If everyone did this,

it would go a long way to solving
the pollution problem,

but I've got something even more
surprising to show him

and it's about where you are
most exposed to fumes.

OK, so, look, this is the level
of NOx inside the car

and this is the level of NOx
on the street.

Wow, OK.

That's NOx,
so that's the toxic stuff,

and you are very much more exposed
to one of the more toxic pollutants

than I am in your car.

So what...? I mean,
that, for me, is really surprising.

So James now has ammunition
for persuading people

to get out of their cars.

With just a fortnight to go
until the big day,

we need some data on the number of
polluters on the high street.

Local resident Tom Tierney
has organised a survey

to see what types of vehicles
and how many

are travelling on the high street

in two hours on a
normal weekday afternoon...

..and our scientists are putting up
state-of-the-art pollution monitors

that will measure the levels
of NOx and PMs

leading up to the big experiment.

Some of the more ambitious members
of the group

want to suspend the parking bays
along the high street.

They think the bays should go

because they make the traffic
stop and start

as people try to park, dumping more
pollution into the high street -

but Stan believes they help the
businesses thrive.

The parking bays, if you suspend
them off the high streets,

all that will happen
is the shops will go down,

people won't be able
to pick big parcels up.

If people can't park, they go to out
of town and pick things up there.

Local architect Cat has brought me
to an upmarket area

of Walthamstow in London.

She has been doing her own research

and is convinced that removing
parking and discouraging motorists

is the answer for Kings Heath.

In 2015,
the council here closed the road

between ten in the morning and
ten at night, seven days a week,

and they took away all the parking
bays that used to line the street.

This road seems a million miles
from Kings Heath High Street,

but it does have
one or two similarities -

like a popular local butcher.

Is it Ron? Hi!

Hiya. Yeah, Ron. Hi, how are you?

Not too bad. My name's Cat.
Nice to meet you.

Hi. Hiya. I'm Xand.
Nice to meet you.

Do you know what the main reason
for making the change was?

This was a bit of a rat run,

so the traffic,
you were getting up to -

probably around about
2,000 to 3,000 cars a day

going through this stretch of road.

Plus, before the closures came in,

there were cars parked
on this road opposite.

Yeah. So there was only one track
going through,

so there was congestion and the
whole thing was... Yeah, yeah.

So you've just got
idling cars outside

all the time. Yes, all the time.

One of the things that I'm hearing
from Stan the butcher in Kings Heath

is that he's worried about if no-one
can park on the high street,

no-one is going to be able to come
in and shop

and that business is going
to suffer. Was that your experience?

No. It didn't affect us at all.

In actual fact, we got busier

because a lot of people were
visiting the street... Right, yeah.

..and we picked up more business.

Overall, Ron, has it been good
or bad for the area?

I think, personally, it's been good.

That's my personal view. And would
you say there is someone else

in particular that we should go
and speak to on this street?

Mark Finamore,
which is two doors down.

He'll probably have
a different view to me. OK, great.

All right, thanks very much.
Thank you very much.

Good to meet you. Good to meet you.
Lovely. Thanks for your time.

Cheers, man. Cheers. Thank you.
Thank you.

So far, Cat's heard exactly
what she wants to hear,

and it's hard to believe that anyone
would object

to the improvements on this street -

but there are two sides
to every debate.

The impact on me, I mean, I've been
here 28 years now, I think,

is that it's actually quite
difficult for my business.

I mean, my passing trade's gone,
and also the issue of parking -

it's very limited. You know,
it is fantastic here without cars.

I mean, you know, it is.

You can see that for yourself -

but it's just if I come down this
end of the road

and there is nowhere for me
to actually park and unload,

I have to then circle
all the way round

and get to that end of the road
to, hopefully, find a space there

to unload and bring things
into my shop,

so I'm now creating much more
pollution than I ever used to.

This is far from simple.

The street feels great,

but it seems as if the pollution
has just been moved elsewhere -

and, I must admit, this looks
nothing like Kings Heath to me.

This just feels different enough.

For whatever reason, it's a bit more
villagey, it looks a bit different.

It doesn't feel quite enough
on its own to win an argument

with Stan and the other sceptics.

How do you think
you're going to do that?

I think it's very tricky,
because, I think, in many ways,

all of us are set
with our own viewpoint.

Even talking to Mark,

I still was reluctant to really see

that it was a bad thing
in some ways.

It's still difficult when you really
want someone to tell you

what you want to hear.
It's very difficult.

The parking bays here..

..are quite a big feature
of what they've done.

Yeah, the lack of parking bays.
Removing the parking bays... Yeah.

..and that is a thing
that we can trial.

Absolutely.

Back in Kings Heath,

Sara's meeting pollution expert
Professor Rob MacKenzie

from the University of Birmingham.

He's got an idea
about how to disperse

some of the worst of the omissions.

So, this is a computer simulation

superimposed on a picture
of the high street. Ooh, that's fun!

So, the red means higher pollution.

Yeah. The green means
lower pollution.

Is the air coming from the exhausts
hot and therefore it rises?

The way I think about this

is by analogy with blowing across
the top of a milk bottle. OK.

That's basically what's happening
here - it's circulating inside.

OK. Because
you're blowing across it,

you are giving the top
of the air a push...

Yeah. ..and that's causing all of
the rest of the air to follow. OK.

It's a wall of shops either side,
isn't it?

And that's a big problem. Yeah.

What do you think we can try?

Well, you could look at trying
to put barriers

between the pedestrians
and the traffic. OK.

Because in the first instance,

what you're trying to do
is just gave the air longer to mix.

So if you think about
that hedge, there...

Yeah. ..you're getting some gain

from pushing the air up over
the hedge and down the other side,

because as long
as the air is moving,

taking a long time to get
from the source

to the person who's breathing it...
OK.

..it's slowly mixing in slightly
cleaner air,

and so it's becoming, itself,
slightly cleaner.

You're also giving
the best opportunity

for the pollution to be
deposited onto the leaves.

OK. I mean, I guess it's a little
bit of a suck and see,

to be absolutely honest. Yeah.

As it gets higher... Yeah.

..I'm still not promising
that you'll see any effect,

but what I can say is,
the higher it gets...

Yeah. ..the more likely you'll be
to see an effect.

Even though hedges might only
make a small difference,

it seems worth a try.

Actions like adding greenery
cost money,

and many towns and cities simply
don't have budgets

to pay for extras like this -

but this could be a false economy.

In fact, one study has calculated
that air pollution costs the UK

£20 billion a year in medical costs
and lost labour.

We know that the lungs of children
living in polluted areas

are permanently damaged,

so I want to try and
persuade parents

not to drive their cars to school on
our big day.

To do that, I need evidence
that kids' lungs are being damaged.

So, what we want to do is look
at how much pollution

you've all been exposed to
over the course of your life,

and so Dr Lisa and Dr Norise, here,
are experts in looking at that.

What they're going to do
is get you to inhale,

basically, some salty water mist.

The salt is going to make everything
a little bit looser,

so it's easier for you to cough up.

So it doesn't hurt,
it doesn't taste funny.

It tastes a little bit salty.

Just imagine you're on a beach.

So, the kids have just had their
nebulisers,

and what that's going to do
is loosen up the mucus,

the sputum deep in their lungs

and then they're going to start to
do some coughing

and bring up cells
from deep in the lungs,

along with the mucus and sputum -

and in those cells,
called macrophages,

we're going to be able to count
particles of carbon

and the number of particles
of carbon

will tell us how much pollution
these kids have been exposed to.

THEY COUGH
You guys are good!

Oh, that's so horrible!

Xand is disgusting!
It's not very dignified, is it?

It's quite... What?! You...

I'm not doing any worse
than you were doing!

We know that kids are most exposed

when they are on their way
to and from school.

Any changes in their sputum
that are down to pollution

are invisible to the naked eye.

The samples will need to be analysed
in a lab

to discover what
our exposure has been.

It's just ten days
before the big experiment.

The team is meeting up to feed back
on what they've been doing,

and Tom has got some surprising
results from his traffic survey

about who the main culprits are.

Overwhelmingly, the most traffic
is actually cars, private cars.

My impression of that was that most
of them had one person,

that was the driver, in.

Sorry, I shouldn't really be
interpreting,

I should be just telling you.
THEY LAUGH

I can't help putting
my own spin on it! Sorry about that.

The next highest number
of vehicles was buses.

There were 64 buses.

That's just about 6%.

HGVs, there was less
than I thought there would be,

to be absolutely honest with you.
It's about 3%.

And what was shocking, in my view,
only 16 bikes in two hours.

Wow. Mm.

Tom will do another survey
on the big day

to see if we've made any difference
to the number of vehicles.

Buses and lorries may only represent
a small proportion

of the overall traffic,
but they are major polluters.

National Express runs 80%
of the buses in Kings Heath.

To make a difference,
we've got to get them on board -

and we've managed to
set up a meeting.

I have to say, I'm not
feeling very optimistic.

They are a massive,
multi-million-pound company

and I'm expecting jobsworths,
gatekeepers

and just, sort of...
they want to make money -

but we've got to have a go.

In London and Nottingham,

hybrid and electric buses have
significantly reduced air pollution.

I'm wondering if Development
Director Martin Hancock

can explain why they don't
use them here.

Electric is very interesting.

At the moment, the technology
doesn't really give us the range

we need for one of our buses.

Electric, I think, is about 150
miles per day without a charge.

Typically, our vehicles are doing
200, 250 miles a day,

so that's a real challenge in how we
actually get electric operation

into the West Midlands.

Can you give me a sense
of how many buses

you actually have on the high
street?

The 50 alone is one of our most
frequent services.

It runs every four minutes or so.

It carries 20,000 passengers a day.

Wow.

That's a sort of decent-sized
stadium full of people

you're moving up and down the high
street every day. It is.

Could National Express run
fewer buses along the high street

on our day of action?

We really think actually maintaining
the timetable

and keeping the same frequency

is the way to get more passengers
onto the bus,

so what we could do is offer
a special fare for people

to try the service.

That's a much better idea.

That's... Well, I guess that's why
you run the bus company and I don't!

This is a compromise for now.

If fewer people drive,
that could help get pollution down,

but, long term, cleaner buses
could really help here.

Just a few days later,

James and I are up at the crack
of dawn

to publicise the whole experiment

on the BBC West Midlands
Breakfast Show.

So we've got four days to go.

Yeah. This seems like a pretty good
way of reaching as many people

as we can. We want to shame them...

No, we want to inspire them!
We want to inspire them.

We want to make them feel happy
about getting out of their cars.

And empower them with information.

Do you feel like people will listen?
I think they'll hear us.

We've got to persuade them
to listen. Right.

Hi, there.

It quickly becomes clear
that presenter Alex Lester

isn't going to give us an easy ride.

Radio for the West Midlands.

I'm working alongside a task force
from Kings Heath in Birmingham.

Kings Heath High Street
is very polluted.

It regularly exceeds what we think
of as the upper limit

for air pollution.
Why did you choose Kings Heath?

Because I know Kings Heath, and
I've walked up and down Kings Heath.

I've been at the Hare & Hounds
in Kings Heath.

I've had some fine times
in Kings Heath.

It's a lovely place.
I never felt sort of ill

as a result of being
in Kings Heath High Street.

Kings Heath is a very,
very typical high street.

You could go to any town in England,
virtually, and find similar things -

buses, cars stuck in traffic
all along the high street,

pouring out the pollution. What we
want is people out of their cars

because we know that has a huge
effect on air quality.

James, you're a business owner.

Are you going to stand out there
on Friday going, "Ah!

"It's so much fresher
in Kings Heath.

"Now, where are my customers?
Customers, customers, customers...

"Hello, hello, hello..."

No-one there. I actually think that
we'll see a difference,

a positive difference in the number
of pedestrians

and there's lots of evidence
out there

that pedestrians spend
more money on the high street -

and, actually, in stationary traffic
or slow-moving traffic,

pollution is worse
when you're inside your car,

so get out of your vehicle,

get the bus, cycle,
walk and, actually,

it should be better
for the businesses there.

How do you think that went?

It goes fast, doesn't it? Yeah.

I think we got most of the
points across. I think so.

I didn't want him putting anyone off
Kings Heath High Street.

I feel like that's not...

We want people to come, but not
use their cars, so I'm hoping...

We didn't mention the buses.

We didn't. That's OK.

You can deal with that.
You can do some flyers.

I'll do that, thanks.

The radio show has given us
a big audience across Birmingham,

but there's one group of people
I want to engage with personally -

the children of St Dunstan's School
on Drayton Road.

Our scientists have put up monitors
right outside the school gates

to measure these kids' exposure
to exhaust fumes.

Just so you get an idea
of the geography,

the high street is right down there
at the end of the road,

and just before you get to it
is James' Gorilla Cafe,

and at school-run time
in the morning and the afternoon

this road is completely jam-packed,

and it's a huge source
of traffic problems.

So what I'm hoping is that I can get
the kids here

to use their pester power

to get their parents involved
in our Clean Air Day.

So, everybody, can you put your
hands together and welcome Dr Xand?

So, one of the things that we wanted
to know about

is what you think of air pollution.

Do you know what part
of the body this is?

Lungs?

You think it's lungs.

You are exactly right.

We did this experiment.

It was quite disgusting, really.

We basically had to do a lot of
coughing and splitting into cups.

We got cells out of them

and we looked at the cells
under the microscope

and what you can see, there are
black dots in all of these cells.

This is one of the kids'.
That huge black dot, there,

that's a piece of soot
from a diesel engine.

So what we really want to do

is change the pollution
on Kings Heath High Street.

Who thinks that's a good idea?

ALL: Me!

Now, who came to school
by car this morning?

Yeah, lots of people, right?

And we know some of you
have to come to school by car,

but there might be a few of you
who could walk,

who might be able to take a scooter

and see if, on Friday, you could
come a different way to school

and make a bit less pollution.

We want you to go home, talk to your
to your mum, your dad,

your guardians,
whoever looks after you,

and try and get them to help make
a difference.

Do you think you can do it?

ALL: Yes!

Who's up for giving it a go?

Me! Come on! Who's up...? It doesn't
sound very enthusiastic!

Who's up for giving it a go? ME!

Well, that was very encouraging.
The kids listened,

or at least they looked
like they were listening,

but we only have a few days
left till Friday,

till the Clean Air Day,
and things like this have to work

if we're going to make a difference
to the air pollution around here.

So I'm just hoping those
kids will get home

and hassle their parents
into making some changes.

Cutting down cars on the school run
could have a big impact

on our experiment.

Back on the high street though, it's
stop-start driving we have to tackle

and the traffic lights
don't seem to be helping.

At the moment, these traffic lights
work on timed cycles.

If the lights were synchronised
and the parking bays were suspended,

the traffic might run more smoothly,

then I think we stand
a fighting chance.

To do any of that, we're going right
to the top - to the council.

We're meeting
Councillor Lisa Trickett,

who's in charge of making
Birmingham a greener city.

We've got a shopping list
of demands.

It's notoriously bureaucratic to
change anything that affects traffic

and we're working
to a tight deadline,

but Lisa has a reputation
to live up to.

If it's temporary, we aren't so
bound by levels of consultation

and we can argue that we're
trialling this, so it is possible.

And surely you're also a
bureaucratic ninja, aren't you?

I mean, can't you get
your way through all this?

I have the battle scars, yeah.

We didn't get any promises, did we?

No. No. She is a councillor,
after all. We'll make it happen.

I do actually have some faith,
I do have some faith.

It's the day before
the big experiment

and the bus company has come good.

They've given us 200 free tickets.

We want people to use buses tomorrow
instead of driving,

so Kate is dishing them out
on the high street.

We're doing a day of action
for clean air

and I'd like to give you one
of these and a badge.

Oh, thank you very much.
Thank you very much. All right.

Thank you very much.
Have a nice day. Thank you, and you.

Come tomorrow and use the bus.
Ah, good on you.

Yeah. Thank you very much.

Would you like a free bus ticket
to come by bus tomorrow? No.

No? OK, thank you.

OK, thank you very much. Yeah.
Thank you. Bye. Bye!

We haven't yet heard back about
synchronising the traffic lights,

but, in the nick of time,
we discover that the council

has delivered on the parking bays.

As night falls,
the suspension notices go up,

though not everyone is happy.

How do people feel about tomorrow?
Stan?

Ideally, if it was purpose-built in
what we're doing, fantastic.

I'm all for it.

But as it is now...

..I think, you know, you've got to
consult the shopkeepers

that are paying a lot of rents and a
lot of rates before you do anything.

For me, what I'm really
excited about is

that it starts to build a
data bank, an information bank,

for us to start to actually think,
is there a better way,

is there something that
we can do for our kids

and for our grandkids
that is better? Or...

..this is as good as it gets?

We need to do things like this
in order to understand

how we can make improvements. Yeah.

This evening, some of us,
not all of us,

are going to be going out and
actually filling those parking bays

with greenery.

The team has managed to get
hold of 60 feet of hedging,

Portuguese laurel to be precise,

and to try and make as big an impact
on the pollution as possible,

the bushes are nearly six-foot high.

Moving this much shrubbery
takes a lot of muscle.

Oh, there we go!

Ah, it's Xander! Hey, everybody.

What are you doing here? Can I help?
Thank you for joining us!

Thank you for joining us.
No, I insist.

Come on, I'll help you. Right,
on three. This could be heavy.

One, two, three? One, two, three.

Heavy! We've done the whole parking
bays all the way down.

Oh! This is real work, eh?

You've got it from here, Cat.
I think...

Man, that's the last one.
Sara, you've got it.

Well done. Well done.
Is that it? Yes.

Well, I'm glad I could help.
That was amazing.

Glad I could be of assistance.

Right, then. Has anyone
asked about what you're up to?

Yes. Yeah, loads of people. Yeah?
We've had a mixed reception.

We've also had cars honking
at us going, "Yeah!"

CAR HONKS
Really? There you go! Hooray!

Honk if you want more hedges.
Yeah. Honk for hedges.

Honk for hedges! Well, I'm very
impressed. There's our slogan!

I'm very impressed, I have to say.

I think we're also a bit mad,
to be honest.

The cold has driven us all mad. You
do, you are looking all a bit manic,

I have to say.
You're looking slightly crazed.

The hedge gang, late at night.

How do you think
it's going to go tomorrow?

Do you think it's going to work?

Even if it's one unit of
improvement,

I am positive that you will see it.

Possibly.

I think it's going to be really
difficult to measure it in one day.

These guys have worked wonders.

They've got all these hedges in,

they've got the parking bays
suspended,

they've launched Clean Air Day.

A little help from me,
I got a bit of free bus travel,

so that should help. We do have
a few other cards up our sleeves,

but I have to say,
with a high street like this...

..I don't know if it's going
to be enough.

Finally, after weeks of planning
and preparation, the big day is here

and it's another early morning date
with local radio for me.

Good morning. Good morning.

This is my last chance
to persuade car drivers,

especially parents about
to start the school run,

to try something different today.

The trouble is, it's bitterly cold

and I'm worried that today,
of all days,

people will prefer their
cars to walking.

Some of the pupils from
St Dunstan's School

have already made
a clever alteration

to the way they get to class.

This is the St Dunstan's
walking bus.

Are you doing all right?

Good. This is making me feel
very happy, this walk to school.

It's a good way to start the day.

How far do you have to come in
the car before you get dropped off?

Right, well, you've all done
brilliantly.

Are you excited about Clean Air Day?

ALL: Yes!

The pavement looks busier to me,

but deputy head Mark McLoughlin
is better placed to judge it.

I'm on the gate, front of house,
morning and afternoon.

And does it look any
different today?

Oh, yeah, as I said,

there's a sizeable reduction in the
amount of cars, the queueing...

Normally speaking, at this point
where we're standing right now,

there might be a queue of cars to
the street 150 metres to our left.

This road and the high street
have both been rigged with sensors

to measure pollution.

In the pub down the road,
the sensors are being monitored

by Professor Roland Leigh from the
University of Leicester

and Dr Francis Pope from
the University of Birmingham.

It's these two who are going to have
to tell us by the end of the day

whether or not our people-power
emissions-busting has worked.

It weighs a tonne!

At the top of the high street,

James is busy trying to
promote our big day

by putting up an oversized banner.

It looks like the wind is
proving something of an obstacle.

While James ties himself up
in knots,

Councillor Lisa Trickett has popped
down to Kings Heath

and she's got a surprise for me.

She's actually managed to get the
traffic light sequencing changed,

although she's not the expert
on how it works.

I'm not the person to talk to.

I suggest we go and get Kevin
in his bunker

and have a conversation with him.
Who's Kevin in the bunker?

He is sort of in charge of
traffic and highways.

Hi, can I speak to Kevin?

PHONE: Yeah, who's speaking, please?
Lisa. Councillor Lisa Trickett.

Hold on.

Has the penny dropped?

PHONE RINGS

Hello? Hi, is that Kevin?
It is, yes.

Xand wanted to know a few things

that were a bit too technical
for my liking.

Kevin, are you, with regard to
traffic lights on Kings Heath,

you're kind of God, is that right?

KEVIN CHUCKLES

What we have got is
this control centre.

We've got sight through
the CCTV cameras

of what's happening to the traffic.

Birmingham's Traffic Control Centre
is about to try an experiment here

for the first time -
synching up the lights

to keep traffic flowing smoothly.

They call it the green wave.

If you hit a green light, you can
move at a continuous speed

along the high street and,
therefore,

not put out too much pollution,
is that the idea?

The principle of green waves
is exactly that, yep.

That's really good.
Well, that is amazing.

The gods, the gods of traffic.
The gods, yeah.

Amazing. Such power!

Can you literally, like, change
the traffic lights behind us?

Yeah, we can change the traffic
signals to green right now

with a click of my fingers to Gary.

It's gone green! There you go.

If someone pushes the button,

a pedestrian pushes
the button to cross,

does that mess up the phasing?
No, it won't.

There will, obviously, be time for
pedestrians and cyclists to cross,

but that will be fixed in
with the green wave timings.

Kevin, that's brilliant.
Thank you very much indeed.

The only problem with making
the traffic flow better

is that drivers using sat navs
might be re-routed this way

because the road is clearer.

But I wonder if I can harness
sat nav technology myself.

One of the things I'm going to try
and do to prevent people

driving their cars along
the high street,

which is a little bit naughty, but I
guess I don't feel too bad about it,

is I'm using one of the traffic
apps, one of the navigation apps,

to flag up that the traffic
is worse than it actually is.

I'm going to say that
it's a standstill.

I'm going to add a comment that this
is a nightmare day for traffic here

and then other users will
see that and, hopefully,

the app will route them
somewhere else.

Of course, this could lead to
congestion elsewhere

as people try to get around
my blockage.

I don't think I should do
it every day,

but I'm hoping, today, that will...

that will make the point that less
traffic will reduce the pollution.

Fingers crossed.

Despite everything
we've put in place,

the traffic does still appear
to be backed up in places,

so are we actually making
a difference?

So, this pub is the nerve centre
of our monitoring operation

and, in here, the two profs,
Roland and Francis,

are crunching the numbers,

so I'm going to find out
how we're getting along.

Is it working?

How are you doing? Hey! Very well.
Very nice to see you.

Are you doing all right? Yeah.
So, how is it going?

A bit early to tell. We've got
some data coming in, but, yeah,

hard to say exactly
what's happened yet.

We haven't got the data
from today ourselves yet.

We've got yesterday's data up
until this morning.

OK. So... You're not giving
anything away. No. Not yet, no. OK.

All right, all right, all right,
keep me in suspense.

While I've got them here,
I want some more details

on how we can protect ourselves
from pollution.

I mean, we've seen some data
that says that it can be worse

inside a car than on the street.

Is there anything
you can do about that?

Can you put a filter on your
car or anything?

Is there a trick to that?

A car will filter its air
to an extent

and that works rather better
for particulate matter

than it does for NOx,
particularly the larger particles,

so if you do just turn to
internal circulation when you think

it might be polluted outside,

you will help to an extent
with the larger particles.

Really? That little button
that no-one ever presses? Mm-hm.

The circle arrow?

If you're sat behind a bus
and you can see the plume,

if you just switch to
internal circulation,

you will at least avoid pulling
in that immediate pollution.

Francis and Roland are comparing
all their Kings Heath data

to the general level of pollution
in the Birmingham area,

so the experiment will only have
worked if Kings Heath has gone down

compared to the rest of the city.

With no results in yet,

I want to know if the traffic
has reduced on the high street.

Tom has an army of volunteers
out counting cars,

including Charlotte and her son Tom.

How are you doing?
All right, thank you.

You seem quite busy.
It's a busy high street!

Yeah. Car.

They're very concentrated on
doing this traffic survey

and counting the cars
as they come by.

Have you got all the ones
that have just come?

Yep. How's it going? Good.
Yeah? Yeah, we've got a lot of cars.

How many...? You haven't
added them up so far.

You're doing the check marks. Yeah.

10, 15... Car. OK. Ah!
Sorry, sorry, sorry.

Car, HGV.

This is quite nerve-racking,
actually. Yeah.

Is it stressful keeping an eye
on it all? Yeah.

Car, car, van.

Van. Yes. Van.

Car.

Bus.

Worryingly, when they tot up
the numbers,

the total volume of traffic
hasn't gone down at all.

Despite that, over in Drayton Road,
James is having a street party.

He knows that more pedestrians
means more footfall,

so he's trying to pull in customers

who might normally have been
in cars.

But have the celebrations
been premature?

As the afternoon rush hour dies
away, it's time to find out.

What you have been trying to do is
something really extraordinary

and you are a community of people
who've come together

around this issue, so
I am absolutely blown away.

My heart is pounding and
I am genuinely quite nervous,

so we cannot wait any longer
for this information.

Roland, your monitors
were on the high street.

Can you talk us through it? OK, so,
the high street is challenging.

You've got buses, you've got HGVs.

A lot of places are just exceeding
by one or two micrograms.

It might be 42, 43,
so even a 5% change

could bring a lot of places
into legal compliance.

What you have in your high street
today is a reduction of NO2...

..of 10% from everything
you've done... Wow! Really?

..which is absolutely huge.
APPLAUSE

Well done, everyone. Phenomenal.

That is amazing!

We thought the traffic was flowing
a bit more smoothly today

than it was previously.

How much difference do
you think that might make?

In my opinion,
that's the biggest factor.

That's the biggest change down
the high street today, is keeping

the vehicles moving, reducing
the stop-start as much as you can.

It really reduces the
amount of fuel burnt

and the amount of
emissions produced.

Our parking bay suspensions,
hedges, bus vouchers

and traffic light changes
seem to have paid off.

Around St Dunstan's School,
though, we had just one plan -

get people out of their cars.

So did that single strategy work?

You did a great job
around the school today.

A lot of parents and a lot of people
changed their behaviour

quite significantly.

That's a road where you had a
lot of control over what went on.

Can we have the numbers?

For NO2, you managed to
change the concentrations...

..by 20%. There was a 20%
reduction... Wow!

That's amazing! ..in NO2
around the school. Well done.

That is amazing!

So, so, NOx is a big deal
for children's health. Yeah.

In terms of particles getting
into their brains, lung development,

it's the particulate matter
that really counts.

Yeah, I think that's true. OK.

So, we went through the numbers,
we crunched the numbers

and I can say...

..that you've managed to reduce it
by 30% during drop-off and pick-up.

Wow. That is really good!

That's massive, right?
Yeah. That's huge.

And that's a real school
with real children

breathing in real pollution.
That is amazing.

I mean, this is your road, James.

It's OUR road. Yeah.
It's our community's road.

So I'm really excited that
the community action has managed

to make an impact
on their wellbeing. Really good.

If you're trying to persuade a
parent to leave their car at home,

I mean, that's a stick to
beat people with, isn't it?

You know, if you're cutting down
particulate matter by 30%...

I mean, you see these
numbers all the time.

30% reduction... Yeah, absolutely.

I mean, there's no safe limit
so anything you can reduce,

1% would really help.
30% is massive.

I think the important thing
to encourage change

is to have that data cos that
makes people want to keep it up,

not just for a special day.

That's... I'm feeling, like, whoa!

Whoa! OK, OK, good stuff.

Can I just say that I have...

..been quietly pessimistic?

And I was pretty much 100% certain

that you would've made no
real difference at all.

There are so many people
that were pro

and so excited that we were getting
up and we were doing something.

We had so many new customers
come in today.

So many people that, even though
they lived in Kings Heath,

had not heard about us before and
out of curiosity they came down.

I've already had two businesses
where you put the hedge in

phone me and say, "What's happening?
We pay a lot of rent here

"and our customers can't
get in to pick things up."

Oh, no, really? Really.
Two businesses.

I thought you were going to say they
phoned and were really happy. No.

Did you get any phone calls
from anyone who was happy?

No. Really? Honest.

I've only seem to get the groans.

I almost have a sort of lump
in my throat.

I really think you have
done an extraordinary thing

for the health of your community
that maybe will take a while

to sink in and I think it is
extraordinary what you've done.

This was just one day in one place,

but what this experiment has shown
is that when local people,

the council and businesses
come together

it IS possible to make
Britain's polluted air cleaner.

I feel absolutely flipping great!

I think the results are
absolutely staggering, actually,

especially the school results.

We're going to be benefiting from
this, but other people are as well.

So, yeah, definitely worth it.
Definitely worth all the cold feet!

We've talked about this
sort of thing a lot,

but we've never actually followed
through and done it

and it happened today
and that's what I really like.

Thank you for showing us
the power of communities.

What you're doing is good
for people's health,

but I still think we've still got
to look after the businesses

in Kings Heath.

I think that what we've been able
to start to do is arm people

with information about an
unseen danger and I'm really,

really proud of Kings Heath
and proud of the people

and proud of what they've done.

MUSIC: Air
by Talking Heads

# Some people say
not to worry about the air

# Some people never
had experience with

# Air

# Air

# Air

# Air... #