How tackling air pollution can unleash the potential of UK sport.

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How tackling air pollution can unleash the potential of UK sport.
How tackling air pollution can
unleash the potential of UK sport.
How tackling air pollution can unleash the potential of UK sport.
[Left] Dominic, 8

                              Executive Summary                      3
                              Air Pollution and Children             5
                              UK Training Grounds                    7
                              Current Legislation                    9
                              Clean Air is a Class Issue             10
                              Conclusion11
                              Methodology12
Cover image:
Halima, 9, Michelle, 9,
Abdelhamid, 9.
                              The Air Team                           13
All the children featured
in the report are pupils at   Sources and References                 14
Manorfield Primary School
in Tower Hamlets, London.     Map Data                               15

Breathe GB                                                            XX
                                                                       2
How tackling air pollution can unleash the potential of UK sport.
Summary: The UK’s clean air crisis
is damaging our children’s lungs
and could be negatively affecting
their sporting performance.

UK children who play sport in                          While the mechanism by which air pollution
urban areas are regularly exposed                      reduces exercise capacity is currently unknown,
                                                       what is known is that the damaging effects of air
to illegal levels of air pollution,                    pollution are made worse by strenuous activity,
which inhibits their lung function.                    where faster and deeper breathing allows
This report proposes that measures                     pollutants to penetrate further into the lungs,
                                                       causing lasting damage.
to reduce air pollution will have
significant beneficial impacts both
on children’s health and the future                         “A child growing up with asthma
of UK sport as a whole.                                     in a polluted city will have worse
The United Kingdom is in the thick of a clean                 symptoms that will limit their
air crisis, risking the health of children living in        potential to train… which is likely
urban areas. Dangerous levels of the chemicals
Nitrogen Dioxide (NO2) and Particulate Matter
                                                           to have an impact on their optimal
(PM2.5) are routinely found in cities across the                  level of performance.”
country, breaking European Union (EU) limits,
far exceeding World Health Organisation                      Dr Ian Mudway, Senior Lecturer in Respiratory
(WHO) recommendations and causing                                Toxicology, Department of Analytical &
                                                            Environmental Sciences, King’s College London
long term harm to health.

We spoke with senior respiratory consultants as
well as leaders in physical education to assess        Children are more likely to engage in regular
the impacts of air pollution on lung function          sporting activity and, as a result, are more
and the knock-on effects on children’s sporting        susceptible to the effects of poor air quality.
ability. In addition, we analysed air quality data     In addition, children growing up with asthma
around some of the UK’s busiest sports training        and other lung conditions in a polluted city will
grounds, in many instances revealing dangerous         experience worse symptoms that will limit their
levels of air pollution.                               potential to train.

29
                                                       As a result, air pollution levels around sites

                 %                                     where children regularly play sports should
                                                       be kept to an absolute minimum. But our own
                                                       analysis revealed an alarming number of sites
                                                       with air pollution levels that exceeded WHO
of UK child asthma                                     guidelines and in some cases broke UK and EU
cases are caused                                       law. Of the 94 sites assessed, 26 broke WHO
by air pollution1                                      limits, while 52 came close to the threshold.

                                                       But there is good news.

                                                       Evidence strongly suggests that immediate
                                                       action to reduce air pollution could have
                                                       significant effects on children’s health

Breathe GB                                                                                                   3
How tackling air pollution can unleash the potential of UK sport.
and physical wellbeing. A landmark study in         Although both the EU and WHO set the limit for
California demonstrated that children with          NO2 at an annual average of 40 µg/m³, for PM2.5,
stunted lung development living in areas of         the EU limit is set at 25 μg/m³ while WHO health
high pollution showed increased lung                recommendations call for countries to reduce
development when local ambient air                  their PM2.5 levels to annual mean values of 10 μg/
pollution levels were reduced3.                     m3. This is far below current limits set out in UK
                                                    and EU law.
While air quality is not the only determinant of
sporting ability, it does have a clear impact on    In order to meet these targets, we’re calling for
children’s capacity for exercise. To reduce that    the adoption of clean air zones in all of the UK’s
impact we propose that the safest possible          major cities and for the government to adopt
limits for NO2 and PM2.5 are adopted in the UK to   WHO-recommended levels of NO2 and PM2.5 as a
ensure improved air quality for our children.       minimum by 2030.

                                                    By bringing WHO guidelines into effect in the
Children exposed to                                 UK, we hope to limit the damage already done to
roadside air pollution                              children’s lungs and improve their lung function,
could have their lung                               increase their access to clean air and green
growth stunted by                                   spaces, and remove the barriers preventing
up to 14%2                                          them from achieving their sporting potential.

                                                    Air pollution is harming

                     14            %
                                                    young lungs. Let’s beat it
                                                    and unleash our children’s
                                                    true potential.

                                           e r y s  tr o  ng
                            There is v xposure to air
                                c e th  at e                     lung
                        evide n                  il d re  n  ’s
                             i on  st u n ts ch             i n  ically
                       pollut         ild ren w    it h  c l
                              n . C h                      have
                      functio        func  t io n   w i ll
                         low  lu n g                 a p  a c  it  y.
                                       x ercise    c
                         redu  c ed  e

                                                    Jonathan Grigg, Professor of Paediatric
                                                    Respiratory and Environmental Medicine,
                                                    Queen Mary University, London

Breathe GB                                                                                           4
How tackling air pollution can unleash the potential of UK sport.
Air Pollution and
Children
Air pollution is a “major public health              childhood obesity and other associated
emergency”4 that has an outsize                      conditions later in life. It is likely that children
                                                     who experience health problems relating to
effect on the vulnerable. Our children               air pollution will be less likely to play sport,
are the most at risk, in particular                  participate in active travel and stay fit than
those living in deprived urban areas.                children who live in less polluted areas.

A growing body of evidence demonstrates that         There is no doubt that air pollution is harmful
long-term exposure to atmospheric pollutants         to the lungs, but the true potential for damage
can stunt the growth of children’s lungs,            is still not fully known. Babies and children are
increase their chances of asthma and obesity,        especially vulnerable to air pollution as their
and reduce the strength of their bones5. Short-      lungs are still developing and they breathe
term exposure is also extremely dangerous.           more rapidly than adults, which increases their
All of this means that children exposed to air       exposure. Long-term childhood exposure to air
pollution will have reduced capacity for exercise.   pollution, from prebirth through to adolescence,
                                                     can lead to permanently reduced lung function,
Impeding a child’s ability to exercise can also      and polluted air has been shown to affect foetal
prevent them from staying fit and healthy,           development too6.
further compounding their chances of

                                                                            Brain damage

Effects of Air Pollution
on Human Body

                      PM2.5                                                                           Stroke

                               NO2

                                                                                    Asthma

                                                                                                Decreased
                  Bronchitis                                                                  bone density

Lung cancer

             Heart disease

Breathe GB                                                                                                  5
“The lung starts to develop at about 8 to 16          clinically low lung function will have reduced
weeks in the uterus and maternal exposure             exercise capacity. As yet the mechanism for this
to air pollution during that time — and across        effect is unknown.”
the pregnancy — can influence the branching
of the airways and the formation of the               What is known is that the damaging effects of air
air sacs,” says Professor Stephen Holgate,            pollution are made worse by strenuous activity,
Medical Research Council Clinical Professor           where faster and deeper breathing allows
of Immunopharmacology at the Faculty of               pollutants to penetrate further into the lungs,
Medicine, University of Southampton. “As a            causing lasting damage. Children are more likely
result, children born in a polluted environment       to engage in regular sporting activity and, as
have smaller lungs and lower lung capacity than       a result, are more susceptible to the effects of
children born in the absence of that pollution,       poor air quality.
putting them at an immediate disadvantage.

“The most recent biology suggests that the air             “We’re trying to encourage more
pollution that the mother passes across the              active travel — walking and cycling
placenta to the baby alters the way the genes
                                                          to schools. If it’s polluted, parents
are expressed in the developing organs.
A number of those altered genes are the same
                                                         may not want their kids to do that,
as those switched on or off during maternal              particularly if they have asthma and
cigarette smoking, which we know affects                        other lung conditions.”
lung development and organ development
in the child.”                                                Sue Wilkinson, CEO of the Association for
                                                                         Physical Education
A child born with smaller lungs is less
equipped to deal with polluted air than a
child with normal lung function. If air pollution     “A child growing up with asthma in a polluted
continues throughout childhood, as is                 city will have worse symptoms that will limit
increasingly the case in the UK, then the             their potential to train,” says Dr Ian Mudway,
child’s lung development is further impaired,         Senior Lecturer in Respiratory Toxicology at
putting them at a physical disadvantage when          the Department of Analytical & Environmental
it comes to sports and physical activity.             Sciences, King’s College London. “Limiting that
                                                      potential to train during different times of day
                                                      and periods of the year is likely to have an
   “We need children to be going out                  impact on their capacity to reach their optimal
   and exercising, and we need them                   level of performance.”
  to be exercising in air that’s as clean
                                                      We already know that many of London’s green
  as possible. Training and performing                spaces regularly experience dangerous levels of
     exercise under the best possible                 air pollution7, but our research has revealed that
 conditions is better for their health and            this also extends to a large number of the city’s
 will encourage them to exercise more.”               most famous and well-used training grounds,
                                                      including the Terence McMillan Stadium, the
          Dr Ian Mudway, Lecturer in Respiratory      former running track of Olympic Medallist
          Toxicology, Department of Analytical &      Christine Ohuruogu and the Peter May Sports
      Environmental Sciences, King’s College London
                                                      Centre, home of The Ridgeway Rovers, where
                                                      England Football Captains Harry Kane and
                                                      David Beckham once trained. We also found
“There is very strong evidence that exposure          concerning levels of air pollution at training
to air pollution stunts children’s lung function      grounds in other areas of the UK, meaning that,
growth,” says Jonathan Grigg, Professor of            across the country, children’s exposure to air
Paediatric Respiratory and Environmental              pollution occurs at times when they are most
Medicine at Queen Mary University, London.            susceptible to its damaging effects.
“Studies in southern California show that a
greater proportion of children growing up in
communities of high air pollution have clinically
low levels of lung function. Children with

Breathe GB                                                                                                 6
We analysed air pollution levels at some of Britain’s
most popular training grounds in five cities:

                                                              26
Each block represents a training ground
in a major British city. Over half of all sites
we analysed had PM2.5 levels close to, or         exceed WHO limits on
hitting, WHO targets (with annual averages             PM2.5 and/or NO2
of 9-10 μg/m³) and nearly a third had levels
exceeding WHO limits (annual averages of

                                                                  94
11 μg/m³ and above).

  PM2.5 Levels (μg/m³ annual average):                           sites analysed
       8        9         10   11+ (>WHO limit)

  NO2 Levels (μg/m³ annual average):                                      52
                                                                          have PM2.5 levels
       40+ (illegal levels)                                               of 9-10

Salford

Sheffield

Nottingham

Birmingham

London

See all data on page 15

Breathe GB                                                                                    7
Key findings:

Both Ridgeway Rovers               The Commonwealth Games
(v) and Alpha & Omega FC (Raheem   2022 will be held at Birmingham’s
Sterling’s youth team) training    Perry Park, which currently has
grounds have PM2.5 levels of 11,   illegal levels of NO2 (50)
breaching WHO limits

       24/26 London sites exceed
                WHO limits
                                                The running
                                                track where
                                                  Mo Farah
                                               and Christine
                                             Ohuruogu once
                                                 trained has
                                              illegal levels of
                                               NO2 (48) and
                                             dangerous levels
The London Marathon                              of PM2.5 (13)
Community Track at
the Queen Elizabeth
Olympic Park has
PM2.5 levels that
exceed WHO limits

                                          Hackney Marshes, the
                                         spiritual home of Sunday
                                          league football, has an
                                          annual PM2.5 level of 12

Breathe GB                                                             8
Current Legislation

Poor air quality is the largest                     “The problem with the EU limits [on PM2.5] is that
environmental risk to public                        they’re not based on health, they’re based on
                                                    political compromise,” says Professor Holgate.
health in the UK, causing tens of                   “If we’re really aiming for health-based limits we
thousands of early deaths and                       need to hit the ones set by the WHO.
billions of pounds in health impacts                If we’re just appeasing the motor industry then
                                                    we won’t get anywhere near the WHO levels,
every year. Our current laws
                                                    and I think they’re actually realistic targets.”
provide insufficient protection.

In the UK, air pollution causes up to 36,000            “The problem with the EU limits
early deaths a year8, with fine particle air
pollution (PM10 and PM2.5) accounting for 29,000
                                                       [on PM2.5] is that they’re not based
of those deaths and nitrogen dioxide (NO2)             on health. If we’re really aiming for
responsible for the remainder.                         health-based limits, we need to hit
                                                           the ones set by the WHO.”
NO2 is a regulated air pollutant in the UK
owing to the well-documented risks it it poses
to human health, with all major studies of                  Professor Stephen Holgate CBE, Medical
long-term exposure to NO2 demonstrating                      Research Council Clinical Professor of
associations with all-cause, respiratory and                Immunopharmacology at the Faculty of
                                                             Medicine, University of Southampton
cardiovascular mortality, children’s respiratory
symptoms and lung function9. Most NO2
in large cities like London comes from the
combustion of fossil fuels, in particular           According to the WHO, the effects of PM10
diesel vehicles.                                    and PM2.5 are well documented and increase
                                                    the risk of various types of respiratory and
The European Union (EU) has set the limit for       cardiovascular morbidity, such as aggravation
NO2 at an annual average of 40 µg/m³, but 45        of asthma, respiratory symptoms and an
local authority areas in the UK routinely witness   increase in hospital admissions as well as
NO2 levels that far exceed this limit10. The same   mortality from cardiovascular and respiratory
legislation sets a mandatory 25 μg/m3 target for    diseases and from lung cancer11.
PM2.5, alongside a 40 μg/m3 target for PM10, both
of which are currently met across the UK.           The effects of emissions can be devastating
                                                    in busy outdoor locations like cities and town
But WHO health recommendations call for             centres, high streets, school-run routes and
countries to reduce their air pollution levels to   sporting venues. Many of the UK’s cities and
annual mean values of 20 μg/m3 (for PM10) and       town centres—including 44 of the 51 listed in the
10 μg/m3 (for PM2.5). These are far below current   WHO’s quality database—have emission levels
limits set out in UK and EU law.                    that exceed EU guidelines, causing millions of
                                                    people to inhale dangerous air12. In addition,
                                                    cars driving along daily school run routes expose
                                                    the pupils who walk to school to damaging
                                                    levels of air pollution.

Breathe GB                                                                                            9
Clean Air is a
Class Issue
Globally, it’s the poorest who feel                                 This disparity between socio-economic groups
the worst effects of outdoor air                                    also plays out at a more granular level. In
                                                                    London, people living in the most deprived
pollution. The same class divide is                                 communities are exposed to levels of NO2
also apparent in the UK, especially in                              pollution that are 25% above average, while 80%
the nation’s capital.                                               of the schools in the most polluted areas are
                                                                    defined as ‘deprived’.14
The WHO states that people living in low- and
middle-income countries disproportionately                          Research conducted by Imperial College London
experience the burden of outdoor air pollution.                     and the University of Leicester also shows that
Ninety-one per cent of the 4.2 million premature                    children living in the most deprived areas of
deaths globally due to air pollution occur in                       London are exposed to higher levels of NO2
low- and middle-income countries, with the                          at the playgrounds nearest to their home.
greatest burden in South-East Asia and                              The nearest playgrounds for 250,000 children
Western Pacific regions.13                                          experience dangerous levels of NO2. Of those
                                                                    children, 165,000 are from deprived areas.15
Although substantial overall improvements
in absolute amounts of exposure have been                           That air pollution should be a class-based issue
seen since 2011, these outcomes mask the                            is “completely unacceptable” says Wilkinson, but
fact that health inequalities experienced by                        we currently lack the research to say whether
socioeconomically disadvantaged populations                         these inequalities are also present in cities
are projected to be maintained until 2050.                          outside of London. “We need better resources
                                                                    to move this debate forward,” says Wilkinson.
                                                                    “Government has got to invest in better air
                                                                    pollution research and make sure that we’ve got
                                                                    clear evidence right across the country and right
                                                                    across socio-economic groups.”

The nearest playgrounds
for 250,000 children                                38
                               across playgrounds
                               Average NO2 levels

experienced dangerous
levels of NO2. Of those
children, 165,000 are from                          36
deprived areas.

                                                    34

                                                    32

Source: Inequalities in                                  Least deprived                          Most deprived
Exposure to Nitrogen Dioxide
in Parks and Playgrounds in                                  areas                                  areas
Greater London.”

Breathe GB                                                                                                        10
Conclusion

It is unacceptable that, in addition         We are only just beginning to understand the
to experiencing dangerous levels             complex effects of air pollution on the health
                                             and sporting potential of our children, but what
air pollution in classrooms and on           we do know is that stunted lung development,
journeys to and from school, children        asthma and other respiratory conditions are
are also being put at risk while they        holding our children back, and preventing them
                                             from reaching their true sporting potential.
engage in physical activity. Regular,
                                             That’s why we’re calling for the adoption of clean
safe exercise is a vital part of a child’s   air zones in all of the UK’s major cities and for
wellbeing, and environmental factors         the government to adopt WHO-recommended
that impede that exercise should not         levels of NO2 and PM2.5 as a minimum by 2030.
be tolerated by any government.              “We need children to be going out and
                                             exercising, and we need them to be exercising
                                             in air that’s as clean as possible. Training and
                                             performing exercise under the best possible
                                             conditions is better for their health and will
                                             encourage them to exercise more,” says
                                             Dr Ian Mudway.

                                             By bringing WHO guidelines into effect in the
                                             UK, we can limit the damage already done to
                                             children’s lungs and improve their lung function,
                                             increase their access to clean air and green
                                             spaces, and remove the barriers preventing
                                             them from achieving their sporting potential.

                                                                         [Left] Ariana, 7

Breathe GB                                                                                      11
What we did

To create this report, The Air Team conducted         The MappAir® Annual Average data, used to
a literature review of existing evidence on the       power the pollution postcode checker on the
effects of air pollution on children and consulted    BBC website, provides a strong indication of
with paediatricians, air toxicology experts as well   pollution from traffic which has been averaged
as PE experts and professionals in the UK             over the year for an area (postcode).

In addition, we worked with air monitoring            The MappAir® Annual Average data is produced
experts EarthSense to analyse 94 sports training      at a resolution of 100m x 100m.
grounds around the UK to ascertain whether
EU and WHO guidelines on NO2 and PM2.5 were
being breached, and where.                            EarthSense is a leading UK company delivering innovative
                                                      and cutting-edge products that enable the world to
                                                      understand and solve its air quality issues. They have
EarthSense ran an annual average model                 key expertise in the delivery of geospatial datasets for
including diffusion tube data and annual              air quality information and management and their unique
statistics. From the Postcode of the Sports           blend of hardware sensor and software modelling
facility they extracted the centroid of the           technologies is a key USP of EarthSense and differentiates
                                                      them as a company.
postcode area in latitude and longitude. These
coordinate locations were then used to look-up
the associated AQ value for NO2 and PM2.5 from
the 2018 Mappair Annual Average dataset. These
data were then ranked to identify particular
areas of exceedance.

EarthSense MappAir® data is modelled from a
variety of data sources including road traffic
data, satellite information and street map data.

[Right] Muhammed, 9

Breathe GB                                                                                                         12
The Air Team

The Air Team is a group of parents,             Some of us have children with asthma, and
teachers, and campaigners on a                  all of us know how damaging toxic air can be.
                                                We want parents across the country to come
mission to clean up Britain’s air.              together to show the government, city mayors
                                                and local authorities that clean air matters.
We believe in a fresh air future: a vision of
our country where children and adults alike     Join us at airteam.uk
can walk to school or cycle to work without
harming their lungs.

Breathe GB                                                                                      13
Sources and
References
1	Martin Williams, Dimitris Evangelopoulos, Klea Katsouyanni and      8	Committee on the Medical Effects of Air Pollutants, Associations
   Heather Walton Environmental Research Group King’s College             of long-term average concentrations of nitrogen dioxide with
   London, Personalising The Health Impacts Of Air Pollution:             mortality.
   Summary For Decision Makers.
                                                                       9   Ibid
2	Haneen Khreis, Marta Cirach, Natalie Mueller, Kees de Hoogh,
   Gerard Hoek, Mark J Nieuwenhuijsen and David Rojas-Rueda.           10 High Court of Justice
   Outdoor Air Pollution and the Burden of Childhood Asthma
   across Europe.                                                      11	World Health Organisation: Health effects of particulate matter:
                                                                           Policy implications for countries in eastern Europe,Caucasus and
3	W. James Gauderman, Ph.D., Robert Urman, M.S., Edward                   central Asia.
   Avol, M.S., Kiros Berhane, Ph.D., Rob McConnell, M.D., Edward
   Rappaport, M.S., Roger Chang, Ph.D., Fred Lurmann, M.S., and        12	The Lancet: Lancet Countdown: Tracking Progress on Health and
   Frank Gilliland, M.D., Ph.D., Association of Improved Air Quality       Climate Change 2017 Report: Briefing for UK Policymakers.
   with Lung Development in Children.
                                                                       13	World Health Organisation 2018, Ambient (outdoor) Air Pollution
4	British Heart Foundation. Heart attack and stroke deaths related        Fact Sheet.
   to air pollution could exceed 160,000 by 2030.
                                                                       14	Rosie Brook, Harry Smith, Alison Pridmore, Katie King,
5	Otavio T. Ranzani, Carles Milà, Bharati Kulkarni, Sanjay Kinra,         Tim Williamson; Aether London’s Polluted Schools:
   Cathryn Tonne. Association of Ambient and Household Air                 The Social Context.
   Pollution With Bone Mineral Content Among Adults in Peri-urban
   South India.                                                        15	Charlotte E. Sheridan,Charlotte J. Roscoe, John Gulliver, Laure
                                                                           de Preux and Daniela Fecht, Inequalities in Exposure to Nitrogen
6	Pedersen M Giorgis-Allemand L Bernard C et al.                          Dioxide in Parks and Playgrounds in Greater London.
   Ambient air pollution and low birthweight: a European cohort
   study (ESCAPE).

7	Charlotte E. Sheridan,Charlotte J. Roscoe, John Gulliver, Laure
   de Preux and Daniela Fecht, Inequalities in Exposure to Nitrogen
   Dioxide in Parks and Playgrounds in Greater London.

Breathe GB                                                                                                                               14
Map data
London sports grounds included in study                                         Postcode   NO2 Value   PM2.5 Value
                                                                                           (ug/m3)     (ug/m3)

St Augustine's Hall, Victoria Park (Victoria Park Harriers and Tower Hamlets)   E9 5EG     67          17

The Peter May Sports Centre (Ridgeway Rovers)                                   E17 4HR    54          13

Terence McMillan Stadium (Newham & Essex Beagles Athletic Club)                 E13 8SD    48          13

Oasis Academy, Shirley Park (Crystal Palace Academy)                            CR0 7AR    41          12

Bartlett Park (Senrab)                                                          E14 6LH    37          12

Hale End training ground (Arsenal Football Club Youth Academy)                  E17 4LU    36          11

Mile End Stadium (Victoria Park Harriers and Tower Hamlets)                     E3 4RR     36          12

Hackney Marshes                                                                 E9 5PF     36          12

The Hub, Regent's Park (Regents Park youth league and Football Club)            NW1 4NU    36          12

Roe Green Park (Alpha & Omega youth team)                                       NW9 0BY    36          11

London Marathon Community Track, Queen Elizabeth Olympic Park                   E20 2ST    34          12

Finsbury Park Athletics track (London Heathside)                                N4 1BZ     33          12

Kennington park (Mighty Royale Elite football club)                             SE17 3PH   32          12

Perivale Athletics Track (Ealing Southall & Middlesex AC)                       UB6 8TJ    32          11

Burgess Park Community Sports Ground                                            SE5 0JD    31          12

Little Heath (West Ham United Academy)                                          RM6 5RX    29          11

Millenium Arena, Battersea Park (Belgrave Harriers)                             SW11 4NJ   29          11

Linford Christie Stadium (Thames Valley Harriers)                               W12 0DF    29          11

Parmiters Sports Ground (Ridgeway Rovers)                                       E4 9AS     28          11

Parliament Hill Fields Track (Highgate Harriers)                                NW5 1QR    28          11

Peckham Rye Common (Tandridge Youth League matches)                             SE15 3UA   27          11

Charlton Park (Eltham Town Youth FC)                                            SE7 8DZ    27          12

Ridgeway Park (Ridgeway Rovers)                                                 E4 6RS     25          11

Tooting Bec Track (Herne Hill Harriers)                                         SW17 8JU   25          11

Rayners Lane Football Club                                                      HA2 0XH    23          10

Tottenham Hotspur Training Centre (Tottenham Hotspurs Youth Academy)            EN2 9AP    21          10

Birmingham sports grounds included in study                                     Postcode   NO2 Value   PM2.5 Value
                                                                                           (ug/m3)     (ug/m3)

Perry Park (Church Rd/playground area)                                          B42 1TY    50          9

Birmingham Alexander Stadium (Birchfield Harriers Athletics Club)               B42 2LR    24          9

Birmingham FA Youth Club                                                        B43 6JF    24          9

Brockhurst Playing Fields (Birmingham Rangers)                                  B36 8JB    23          9

West Bromwich FC Academy                                                        B71 4LQ    23          9

Coleshill Town Football Club (AFC Chelmsley youth football club)                B46 3JE    22          9

Villa Park Academy Building                                                     B6 6HE     22          9

Small Heath Leisure Centre                                                      B10 9RX    21          9

Sheldon County Park                                                             B26 3TU    21          9

Four Dwellings Academy (Cadbury Athletic)                                       B32 1RJ    21          9

University Recreation Ground (Great Barr Harriers FC)                           B43 7AJ    21          9

Fox Hollies Leisure Centre (Sparkhill Harriers)                                 B27 7NS    20          9

Norman Chamberlain Playing Field (Castle Bromwich Olympic football team)        B34 7RB    20          9

Sparkhill Park                                                                  B11 4LX    19          9

Swanhurst Park (Sparkhill Harriers)                                             B13 0TB    19          9

Marston Green Recreation ground (AFC Chelmsley youth football club)             B37 7ER    19          9

[continued overleaf]

Breathe GB                                                                                                           15
Birmingham sports grounds included in study                 Postcode   NO2 Value   PM2.5 Value
                                                                       (ug/m3)     (ug/m3)

Trillion Trophy Training Centre (Birmingham City Academy)   B38 9EJ    19          9

University of Birmingham Athletics track (BRAT club)        B15 2RA    18          9

Bodymoor Heath Training Ground (Aston Villa Academy)        B78 2BB    17          9

Dickens Heath Sports Ground (Leafield Athletic Ladies FC)   B94 5NA    17          9

Alvechurch FC                                               B48 7RT    15          8

Nottingham sports grounds included in study                 Postcode   NO2 Value   PM2.5 Value
                                                                       (ug/m3)     (ug/m3)

YMCA Youth and Community Centre                             NG8 5HL    37          10

Forest Recreation Ground                                    NG7 6LB    34          10

Astro Kings 5-a-side Football Centre                        NG8 4PB    28          9

Nottingham Football Centre                                  NG2 7BW    28          9

Gresham Playing Fields                                      NG2 7RL    28          9

Nottingham Forest Football Club                             NG2 5FJ    28          9

The Nigel Doughty Academy                                   NG2 7SR    26          9

Southglade Leisure Centre                                   NG5 5GU    26          9

Nottingham Hockey Centre                                    NG7 2PS    26          9

David Ross Sports Village                                   NG7 2RD    26          9

Lee Westwood Sports Centre                                  NG11 8NS   25          9

Redhill Leisure Centre                                      NG5 8GX    24          9

Bilborough Sports & Fitness Centre                          NG8 4DQ    24          9

Arnold Hill Academy                                         NG5 6NZ    23          9

Bingham Athletics Track                                     NG13 8BL   20          9

Salford Sports grounds included in study                    Postcode   NO2 Value   PM2.5 Value
                                                                       (ug/m3)     (ug/m3)

David Lewis Recreation Ground                               M9 4DW     35          10

University of Salford Sports Centre                         M5 4WT     49          9

De La Salle Playing Fields                                  M6 8AQ     29          9

The Albion Academy Astroturf                                M6 6QT     32          9

Ordsall Leisure Centre                                      M5 3DJ     35          9

Clarendon Recreation Ground                                 M5 4HU     30          9

Barr Hill JFC                                               M6 7ED     26          9

Bolton Road Playing Fields                                  M6 7HB     25          9

Manchester City Football Academy                            M11 4TQ    31          8

Ordsall Park                                                M5 3WQ     29          8

Lower Broughton Playing Fields                              M7 2HR     29          8

Langworthy Park (Chimney Pot Park)                          M6 5PP     26          8

Swinton FC (youth team)                                     M27 5LJ    25          8

Broughton Cricket & Rugby Club                              M7 2HL     29          8

Broughton Hub                                               M7 4BQ     29          8

Salford City Juniors                                        M30 0QA    26          8

Deans Youth & Ladies Football Club                          M30 9BG    25          8

Salford Sports Village                                      M7 3NQ     24          8

KD Sports Centre (Little legends soccer school)             M27 4FG    23          8

Breathe GB                                                                                       16
Sheffield Sports grounds included in study           Postcode   NO2 Value   PM2.5 Value
                                                                (ug/m3)     (ug/m3)

Middlewood Rovers Junior Football Club Grounds       S13 9AE    39          10

17 U Mix Building                                    S2 4UJ     40          10

Sheffield Hallam University City Athletics Stadium   S9 3HL     27          9

Hillsborough Arena                                   S6 4HA     33          9

Sheffield Wednesday FC Training Ground               S6 1BJ     26          9

Olympic Legacy Park                                  S9 3TL     24          9

Goals Sheffield                                      S2 2RU     22          9

Westfield Sports Centre                              S20 1HQ    20          8

Norfolk Heritage Park                                S2 2PL     21          8

Sheffield United Academy                             S4 7DR     23          8

Goodwin Sports Centre                                S10 2TY    21          8

Gym Plus (Kixx football training for kids)           S10 5BZ    20          8

Wisewood Sports Centre                               S6 4BS     19          8

Breathe GB                                                                                17
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