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Rachel Salvidge Profile picture
@RachSalv
Jan 20 • 16 tweets • 5 min read • Read on X
They’re toxic, everywhere and here forever.
PFAS forever chemicals are in water, soils, air, wildlife and your body.
They're linked to cancers & other diseases.
We wrote 10 stories for the Guardian about PFAS.
Here’s a round-up in case you missed it: 1/15
Revealed: drinking water sources in England polluted with forever chemicals
Exclusive: Water industry calls for PFAS ban after analysis of sampling data shows contamination across country. 2/15
theguardian.com/environment/20…
UK farmland being contaminated by ‘forever chemicals’ linked to cancers
Levels of PFAS chemicals found in sludge destined for British land would not be considered safe for allotments 3/15
theguardian.com/environment/20…
RAF bases are hotspots of ‘forever chemical’ groundwater pollution, MoD documents show
Exclusive: Sampling results show ‘extremely concerning’ concentrations of PFOS and PFOA at sites across UK 4/15
theguardian.com/environment/20…
‘High-risk sites’: where are the UK’s ‘forever chemical’ hotspots?
An Environment Agency report has identified more than 10,000 ‘high-risk sites’ contaminated with PFAS 5/15
theguardian.com/environment/20…
Otters, porpoises, seals, birds among UK wildlife carrying toxic ‘forever chemicals’.
See next post for an interactive map. 6/15
theguardian.com/environment/20…
Where PFAS contaminated wildlife have been found.
Click on the link in the next post to explore the interactive map. (Click the two arrows in the top right of the map for full screen and check out the side bar for more about your area) 7/15
watershedinvestigations.com/home/find-out-…Image
Industry has made a lot of money from PFAS

3M knew firefighting foams containing PFAS were toxic, documents show
Exclusive: Newly uncovered documents reveal chemicals giant was aware ‘environmentally neutral’ products did not biodegrade 8/15
theguardian.com/environment/20…
PFAS industry using ‘tobacco playbook’ to fend off ‘forever chemicals’ regulation
Industry-funded research and exaggerated claims litter arguments against stricter rules 9/15


*This story was part of the Forever Lobbying Project, led by Le Mondetheguardian.com/environment/20…
Cost to clean up toxic PFAS pollution could top £1.6tn in UK and Europe
Exclusive: Costs of UK cleanup will reach £9.9bn a year in UK if emissions of ‘forever chemicals’ remain uncontrolled 10/15
theguardian.com/environment/20…
The two stories above were part of the cross-border investigation by the Forever Lobbying Project, led by LeMonde, see here for more info: 10a/15
#ForeverLobbying follow up of the #ForeverPollution projectforeverpollution.eu
Experts are not happy about it.

UK failing to match EU in fight against ‘forever chemicals’, say scientists
Experts criticise Defra’s decision not to use OECD definition of PFAS, with one asking if move is ‘politically based’. 11/15
theguardian.com/environment/20…
They’ve been linked to cancers and a range of serious diseases
Bloodletting recommended for Jersey residents after PFAS contamination
The island’s private drinking water supplies were polluted by use of firefighting foams 12/15
theguardian.com/uk-news/2025/j…
A quick primer: What are PFAS, how toxic are they and how do you become exposed? 13/15
theguardian.com/environment/20…
The Guardian wrote a leader about the growing problem.
The Guardian view on chemical pollution: the UK can’t ignore the risks from PFAS 14/15
theguardian.com/commentisfree/…
In case you’re not sated, there’s even more on PFAS here! 15/15

theguardian.com/profile/rachel…

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More from @RachSalv

Rachel Salvidge Profile picture
Dec 16, 2024
Our nationwide months-long investigation found that bathing waters are polluted by drugs, chemicals, pathogens and ‘superbug genes’ that can make antibiotics ineffective. 1/ Image
Hundreds of samples were taken. We found E.coli up to 22 times higher than would be deemed safe in the US, low concentrations of banned ‘forever chemicals’ that have been linked to cancer. 2/
We found drugs meant to treat seizures, diabetes, depression. We found pesticides and pet medicines. 3/
Read 12 tweets
Rachel Salvidge Profile picture
Oct 15, 2024
BREAKING: The number of sites polluted with toxic PFAS is on the rise. There are now four being investigated (out of potentially thousands) and the Environment Agency is freaking out about the cost of investigation, let alone clean-up... 1/
theguardian.com/environment/20…
Site 1: Duxford airfield/museum. In 2022 I broke the story that PFOS has been found in drinking water supplies. Probably from firefighting foams that have percolated into the aquifer below. It's now being investigated. 2/
theguardian.com/environment/20…
Site 2: A former RAF base turned firefighting college in Moreton-in-Marsh in the Cotswolds is another. Probably safe to assume it's those PFOS-laden firefighting foams again. 3/
Read 10 tweets
Rachel Salvidge Profile picture
Jun 27, 2024
Very excited to announce the launch of
THE WATERSHED POLLUTION MAP!

River health, landfills, sewage, road run-off, intensive farming, big industry, forever chemicals, abandoned mines, bathing waters, flood risk, protected areas and so much more... 🧵

bit.ly/45GBMRQ
Image
Here's a quick and simple guide showing you how best to use it:
With 100+ datasets, I don't think there's anything out there like it in terms of scope and detail.

We created it bcs, as part of our work, we collect lots of data from research & official sources. We wanted to collate it, sort it & make it accessible so that as many people...
Read 8 tweets
Rachel Salvidge Profile picture
Dec 1, 2023
Big news!
We've been writing about PFAS pollution a lot and now one of them - PFOA - has been categorised as a carcinogen. It's been found in drinking water and PFAS are everywhere
‘Forever chemical’ in English tap water samples carcinogenic 1/6
theguardian.com/environment/20…
They've been found in drinking water sources across England and @leanahosea and I have found PFOA in tap water for @WATERSHED_i
2/
 ‘Forever chemicals’ found in drinking water sources across England
theguardian.com/environment/20…
We also tested effluent from a chemicals factory site which had extremely high levels of PFOA in it. 3/

Toxic substances from chemicals firm site found polluting protected rivertheguardian.com/environment/20…
Read 6 tweets
Rachel Salvidge Profile picture
Oct 5, 2022
Lots of chest thumping about government slapping enormous (up to £250m) civil penalties on water companies for sewage pollution! It sounds shockingly like a good idea, but could it ever happen? And might it actually make things worse?

A few wee thoughts... 1/
At first glance, Ranil Jayawardena’s pledge to increase to the cap on civil penalties for water company pollution 1,000-fold, from £250k to £250m, appeared to be a big win for the environment. 2/
But the Environment Agency has already said it can't afford to fulfil its duties, it has pulled back from inspecting pollution incidents, it has fewer frontline officers, it's monitoring less, it's downgrading incidents, and it likes water firms to self-regulate... 3/
Read 5 tweets
Rachel Salvidge Profile picture
Jan 31, 2022
Are the wheels coming off the Environment Agency?
A thread 1/8
At the end of last year, Environment Agency chief executive Sir James Bevan has sent a strongly worded message to staff warning them against speaking to the media. 2/8
endsreport.com/article/173532…
Whistleblowers promptly told ENDS that the agency has decided to ignore lower impact pollution incidents and leaked materials. 3/8
endsreport.com/article/173678…
Read 9 tweets

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