Thousands of sites potentially contaminated with toxic chemicals in Britain have never been checked by councils, a BBC investigation has found.
Nine out of 10 "high-risk" areas have not been tested by councils responding to a BBC Freedom of Information request and scientists fear they could pose a health risk as they are thought to contain substances such as lead or arsenic.
The BBC Shared Data Unit found of 13,093 potentially toxic sites that councils have identified as high risk, only 1,465 have been inspected.
The UK government said local unitary authorities had a statutory duty to inspect potentially contaminated sites but councils claim they do not have the money to do it.
The Environmental Protection Act, external requires councils to list all potential contaminated sites, and inspect the high-risk ones to make sure people and property are not at risk.
But after contacting all 122 unitary authorities in Wales, Scotland and England about their contaminated land, 73 responded to the BBC's Shared Data Unit Freedom of Information request which revealed there were 430,000 potential sites identified in the early 2000s.
https://www.bbc.co.uk/news/articles/c4gez4zgk8ko