The Guardian reports that a chemicals company is releasing large quantities of a “forever chemical” described as being “very persistent, mobile and toxic” into the River Wyre in Lancashire each year, and is not breaking any rules.

Earlier this year, the Guardian and Watershed Investigations revealed that effluent coming from the site of AGC Chemicals Europe in Thornton-Cleveleys could contain about 700 types of perfluorinated and polyfluorinated alkyl substances (PFAS).

PFAS is an umbrella term for thousands of human-made substances known as “forever chemicals” because they will not break down in the environment for thousands of years. Some are also known to be toxic and can accumulate in the human body.