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A ball lies on the artificial 3g pitch (file pic). Alamy Stock Photo

Cancer links, environmental concerns and the years-long argument over banning artificial pitches

The use of rubber crumb has caused concern for both health and environmental reasons.

IN 2016, every parent of a boy at Ajaxโ€™s De Toekomst Academy in Amsterdam received a letter from the club.

The message was simple: they no longer needed to worry about their children playing on the clubโ€™s 3G pitches with rubber crumb infill. The club had agreed to remove the pitches.

It was a remarkable decision following a decade in which the number of 3G pitches in Holland had increased from around 300 to over 2,000.

Government-sponsored research in 2006 was the catalyst for the 3G revolution after the initial findings concluded the rubber crumb to be safe.

However, Dutch public broadcaster NPOโ€™s 2016 documentary uncovered serious flaws in the original research.

The study by the Dutch public health institute RIVM in 2006 was conducted over two and a half days and contained a sample of just seven adult footballers.

The subsequent investigation by the Zembla programme โ€” the Dutch equivalent of RTร‰ Prime Time Investigates or BBC Panorama โ€” caused shockwaves across Holland.

There were four separate parts to the investigation โ€” one about the environmental issues, one about the lack of recycling of the fields and two about the health factors, with the latter garnering the most attention.

One of the especially concerning allegations surrounding rubber crumb, defined as being โ€œderived from end-of-life tyres and is the smallest and highest end use of recycled rubber,โ€ is that carcinogens in the rubber can cause cancer

In the Netherlands, in particular, it was a worrying development.

Nikolaj Magne Larsen, the CEO of Re-Match Netherlands, a turf recycling company, has noted how the country has โ€œthe highest square meters of artificial turf per inhabitant in the world.โ€

Moreover, at the time, six Eredivisie teams, Heracles, Sparta Rotterdam, Excelsior, Roda JC, Zwolle and ADO Den Haag, used 3G pitches at their respective home grounds โ€” although other clubs subsequently followed Ajaxโ€™s lead.

RIVM had found โ€œno indications of a relationshipโ€ between the crumb and leukaemia or lymph node cancer, but after the documentary aired both the Dutch minister for health, Edith Schippers, and Fifa President Gianni Infantino backed calls for a more thorough investigation into the potentially harmful effects of rubber crumb.

โ€œThe first month after our first show, [the reaction] was huge,โ€ Dutch investigative journalist Roelof Bosma tells The42. โ€œAnd to be honest, it surprised me as well.โ€

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Bosma and his colleagues changed the conversation around 3G pitches in Holland, but they were not the first people to suggest possible links with cancer.

Months before the Zembla documentary, findings recorded in the US by the University of Washington also suggested a possible connection between the use of artificial pitches and cancer.

washington-huskies-associate-head-coach-amy-griffin-watches-her-team-warm-up-before-the-first-round-match-against-the-seattle-u-redhawks-during-the-ncaa-womens-division-1-soccer-tournament-on-novembe Former USA international Amy Griffin. Alamy Stock Photo Alamy Stock Photo

One of the authors was Amy Griffin, a former USA international, who found that 200 athletes who used artificial surfaces regularly had developed forms of cancer.

Of the 200 in question, 158 were footballers and 95 were goalkeepers. The logic is that โ€˜keepers tend to be more exposed to the chemicals because they are frequently required to dive on these surfaces to save shots.

The list is continually updated and as of May 2020, had examined 268 athletes with cancer.

There is still no conclusive evidence but the theory is that toxic chemicals from recycled tyres can leave people at risk of cancer if ingested over a substantial period.

Yet footballโ€™s hierarchy has regularly played down health concerns.

In 2016, Fifa told Sky Sports News that their โ€œMedical Assessment and Research Centre (F-MARC) in cooperation with Uefa conducted an analysis of this matter in 2006.

โ€œAt that time, the conclusion was clear: the available body of scientific research on this issue did not substantiate the assumption that cancer resulting from exposure to SBR granulate infills in artificial turf could potentially occur.

โ€œSince then, several independent research have been conducted โ€” the latest being from 2015 โ€” reaching similar conclusions. Fifa will continue monitoring and analysing any new evidence produced on this matter.โ€

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While uncertainty remains over the cancer links, some people are unwilling to accept the gameโ€™s authoritiesโ€™ longstanding stance.

Lewis Maguire, a promising young goalkeeper from Darlington who had trials at Leeds United, passed away at the age of 20 from Hodgkin lymphoma.

Following an inquest into his 2018 death, his family renewed calls for a ban on artificial sports pitches.

Lewisโ€™s father Nigel, a former chief executive of NHS Cumbria, believes his son could have contracted the disease from rubber crumb on the artificial grass he had regularly played on before his illness. He has called for a ban on these pitches until it is proven beyond doubt that they are safe.

โ€œI will continue to press for answers, not least because Lewis wanted those answers and I owe it to him to get them,โ€ Nigel said after Newcastle Coroner did not refer to the familyโ€™s claims at the inquest

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As alarming as the health concerns are, a significant proportion of the research on plastic pitches has focused on environmental issues.

In 2023, the Environmental Protection Agency (EPA) published a report by Atlantic Technological University and University College Dublin highlighting how artificial grass, such as those used on football pitches, can contaminate the environment.

Dr Rรณisรญn Nash, Senior Lecturer & Researcher at ATU, was one of the reportโ€™s authors.

The study outlines how microplastics can escape these pitches and end up directly or via wastewater in local waterways. 

Studies have found that microplastics can harm aquatic life and enter the food chain when ingested.

โ€œIf Iโ€™m ever giving a talk for people, what resonates with them is that if youโ€™ve got any kids, or youโ€™ve played on pitches yourself, and you come home and you take off your socks, all those little black bits of rubber are essentially microplastics, and theyโ€™re [transferring] back into your house and in your washing machine,โ€ Dr Nash tells The 42.

fifa-president-gianni-infantino-delivers-his-speech-at-the-fifa-congress-in-bangkok-thailand-friday-may-17-2024-ap-photosakchai-lalit Fifa President Gianni Infantino is among those who have called for further investigation on artificial pitches. Alamy Stock Photo Alamy Stock Photo

There are ways people can limit potential environmental damage by containing the spread of microplastics.

Some of the measures Nash recommends include boot cleaners to wipe down boots before leaving the pitch, in-built socks so the microplastics donโ€™t get caught in the socks anymore, and butt walls, barriers and containment areas that reduce the amount of microplastics escaping from the surrounding area.

Nash understands why there might be pushback against talk of either banning or substantially changing artificial pitches, particularly if โ€œyouโ€™re part of a parish and youโ€™ve saved for five or six yearsโ€ to get them installed.

However, she adds: โ€œI think the majority are unaware that these are intentionally added microplastics theyโ€™re playing on. It would never dawn on someone what impact thatโ€™s going to have. So I think a lot of it is that theyโ€™re unaware of it.

โ€œIf people are aware of the damage happening, and there is a retrofit for it, then I think they will be more open to doing it.

โ€œAnd people do adapt. I mean, the plastic bag levy got people to adapt. I recently bought a washing machine that has a setting for fewer microparticles.โ€

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Seven years ago, Viv Mitchell was enjoying her retirement when she discovered that the local council near her home in the Midlands of England wanted to build a 3G rubber crumb football pitch beside the primary school attended by 630 pupils including her grandchildren.

Previously, she had been alarmed to read about Lewis Maguireโ€™s story and felt compelled to protest this action.

Since then, Mitchell has been tirelessly campaigning against 3G pitches. She says she โ€œcouldnโ€™t sleepโ€ the first couple of years after becoming obsessed with this issue and thinking about: โ€œHow do I keep children safe?โ€

Sport England have produced hygiene guidance notices that encourage people โ€œto remove any loose material (e.g. sand, turf, rubber-crumb, clay) from shoes, clothes, and equipment before entering changing rooms and buildings after taking part in physical activity outdoorsโ€.

Mitchell argues that these guidelines โ€œput the onus on the players and parents to keep themselves safeโ€ when it should be sports authorities taking the initiative.

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In more recent years, the talk of banning artificial pitches has intensified.

However, environmental rather than health factors have primarily driven the debate.

The European Commission has proposed a ban, which would prevent microplastics from being added to sports fields, cosmetics and cleaning products owing to their negative environmental impact. An initial six-year transition period was set but has since been extended and September 2031 is the current deadline.

The ban would also cover products derived from old tyres such as artificial football pitches and childrenโ€™s playgrounds.

The European Chemicals Agency (ECHA) have assessed the health risks, focusing on exposure through skin contact, ingestion and inhalation.

The ECHA concluded that โ€œthere was a very low level of concern from exposure to the granules. The risk of cancer after lifetime exposure to rubber granules was judged to be very low based on the concentrations of PAHs measured at some European sports grounds.  These concentrations were well below the legal limits.โ€

Nevertheless, they recommended that people take โ€œbasic hygiene measures after playing on artificial turfโ€ to counteract โ€œsome uncertainties that would warrant further investigationโ€. 

In addition, a 2017 study by RIVM recommended reducing โ€œthe legal concentration limits of cancer-causing PAHs in the infill material. The Dutch authorities took action and submitted a restriction proposal with a specific concentration limit value for PAHs.โ€

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sean-kelly Former GAA President Sean Kelly is among those to have expressed concern about the potential banning of artificial pitches. James Crombie / INPHO James Crombie / INPHO / INPHO

Former GAA President and MEP for Ireland South, Sean Kelly, is among those to express concern about the upcoming ban

Kelly mentions the potentially โ€œhuge costsโ€ for the clubs involved and emphasises the need for a โ€œbalanced approachโ€ in tackling this matter.

โ€œIf microplastics arenโ€™t good for the environment or human health, it has to be looked at,โ€ he says.

โ€œThere is a need for quick and conclusive research into all these aspects.โ€

Kelly believes the ban should not be enforced in 2031 โ€œif there arenโ€™t clear guidelines, clear alternatives. Because what are you going to do if a club cannot alter it, in the meantime, just stop the functioning of the club? And that is why I think research is so important.

โ€œWhen it came to it, we were able to discover medicine and injections for Covid in a very short period, which is effective. And I think by bringing the best researchers together, and communicating with the sports bodies, I would hope that the same could apply here.โ€

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Unsurprisingly, efforts to remove or alter plastic pitches have encountered major pushback.

Even Bosma while undertaking the investigation felt somewhat conflicted as his son and friends had been playing on these pitches.

โ€œIt was a very big ethical discussion because I wanted my son to play football with his friends and not have to look in a [different] area to find another club that didnโ€™t use those fields. And there were not so many clubs in this area or Holland anymore who wonโ€™t play on artificial pitches.

โ€œBut I was [adamant] that he wouldnโ€™t play on the rubber crumb.โ€

There are widespread concerns over how such a ban would impact grassroots football and people from the tyre industry have argued this measure would be disproportionate.

However, last year representatives from EU countries voted to adopt the Commissionโ€™s proposal in the REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) Committee โ€” the group of national experts that votes on changes to EU chemicals rules.

Yet there is frustration on both sides. In reaction to criticism, the Commission revised its proposal to include a longer transition period for the pitches โ€” extending it from six to eight years.

The Danish Football Association are among those to have expressed scepticism over the ban and are instead promoting โ€œnew standards for the artificial turf pitches of the future,โ€ which include fences and drainage systems to limit the release of microplastics.

An infill made from cork and the fibre of coconut shells has been proposed as a safer alternative to rubber crumb.

One of the key moments that sparked Bosmaโ€™s investigation was when he discovered that the Dutch FA, the KNVB, were using cork infill rather than rubber crumb.

person-holding-smartphone-with-logo-of-eu-institution-european-chemicals-agency-echa-in-front-of-website-focus-on-phone-display EU institution European Chemicals Agency (ECHA) has warned of the health risks associated with artificial pitches. Alamy Stock Photo Alamy Stock Photo

The problem is that it is considerably more costly (in the region of โ‚ฌ17,000 per pitch) and the cork infill is allegedly unsuitable for cooler climates, with the slippery surfaces in freezing winter temperatures hazardous to players.

There is also disgruntlement about the financial consequences of the Commissionโ€™s proposal, which is nearly โ‚ฌ50 million, according to the Danish environment ministry

Yet the ECHA has stood firm against this pressure, warning that โ€œexposure to high levels of harmful chemicals through the soft infill material could pose health risks to people using or working on artificial pitchesโ€.

Furthermore, there is concern over what to do with the leftover recycled tyres if the ban is enacted. Nonetheless, the Commission has backed research programmes to support the industry in finding โ€œmore sustainable solutions.โ€

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So what about Ireland?

There are up to 2,500 artificial pitches, with GAA, rugby, hockey and soccer among the sports set to be impacted.

According to the Irish Examiner, the country has spent approximately โ‚ฌ500 million on plastic pitches that may soon be outlawed.

Several coaches and players in the League of Ireland have complained about artificial pitches in recent years, primarily due to the perceived increased risk of injury and the potential advantages it gives certain teams.

Derry City and Dundalk are among the teams that have used artificial pitches in their home stadiums.

The FAI said last year that they were โ€œclosely monitoring the EU regulations about microplastics and any impact causedโ€.

Of course, none of it is relevant to the country Ireland most regularly imports footballers to, England, because they have not been part of the EU since Brexit.

European authoritiesโ€™ reservations have seemingly not been shared across the water โ€” in 2021, then-Prime Minister Boris Johnson announced ยฃ50 million in funding for 185 new artificial football pitches.

Consequently, Mitchell has grown increasingly exasperated at the British government and sporting authoritiesโ€™ consistent inaction.

โ€œOur grandchildren, all our following generations, will wonder why we let this happen, why we didnโ€™t do all we could to keep our world safe and viable,โ€ she wrote back in 2020. โ€œThis waste contributes to climate change too, so weโ€™ve really messed up their future.

โ€œSo, weโ€™re harming health, polluting our environment and poisoning the food chain. We just canโ€™t carry on as usual, we actually need to take urgent steps to rectify this.โ€

Bosma, meanwhile, is calling for more studies, particularly about the health risks of artificial pitches, as the debate rages on.

โ€œYou can only do this well if you do a very good study โ€“ [the problem with] these kinds of subjects is that thereโ€™s not a big interest in such a study

โ€œOr to do it for years and years, to delay, and thatโ€™s what we see all the time โ€” they delay the decisions. They tried to do with our shows as well so they also want to do that with studies about health issues.

โ€œYou shouldnโ€™t underestimate the level of the industry. When itโ€™s about environmental issues, I think they cannot do that anymore because there are so many studies. When itโ€™s about health issues I think they still do because I cannot prove it โ€” thatโ€™s why itโ€™s not going as fast as the environmental studies.โ€

The FAI, Sport Ireland and Irish-based companies who install plastic pitches have yet to respond to The 42โ€ฒs request for comment on this story.

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