12 Questions
What is the term used to describe the group of 10,000 or so human-made chemicals found in drinking water sources across England?
Per- and polyfluoroalkyl substances (PFAS)
How many water companies in England had potentially toxic 'forever chemicals' detected in their drinking water sources?
17 out of 18
What are some of the potential health effects linked to certain PFAS, including PFOS and PFOA?
Cancers, thyroid disease, immune system and fertility problems, as well as developmental defects in unborn children
What is the threshold for high-risk PFAS contamination, according to the Drinking Water Inspectorate (DWI)?
100 nanograms a liter or more
How many samples tested positive for PFAS in the Drinking Water Inspectorate's (DWI) testing?
11,853
What is the name of the organization that conducted the testing and found the presence of PFAS in drinking water sources?
The Drinking Water Inspectorate (DWI)
What was the concentration of PFOS found in raw untreated water compared to the tier 3 limit?
18 times the tier 3 100ng/l limit
How many PFAS compounds were detected out of the 47 that water companies were told to look for?
35
Which water company had the largest number of raw water samples above the maximum DWI limits?
Affinity Water
Why did the high concentrations of PFAS in raw water not make it to people's taps?
The contaminated water was blended with another source to bring the levels down.
What is the current limit for individual PFAS types in England and Wales, and what is the Royal Society of Chemistry pushing for?
The current limit is 100ng/l, and the RSC is pushing for a tenfold reduction to 10ng/l.
How do the PFAS limits in England and Wales compare to other countries, such as Denmark and the US?
England and Wales have less stringent limits compared to Denmark and the US, which have stricter limits.
Take this quiz to learn about the detection of potentially toxic 'forever chemicals' in drinking water sources across England. Find out how many water companies are affected and what experts are saying about this alarming issue. Test your knowledge on the impact of PFAS on our environment and health.
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