Curious, I looked it up and discovered that it's in the class of chemicals that were manufactured by 3M for use in Scotchguard, among other consumer products and applications. Perfluorooctane sulfonate (PFOS) received a flurry of attention around 2000, when studies of its effects on animal and human health showed that it was bioaccumulative (meaning that it accumulates in body tissue, especially in fat where it can linger for years), persistent, and toxic to mammals.

[…] there was a widespread ambition that the United States should evoke some sort of permanent arbitration council alone, or in concert with the other Powers still neutral, which should stand, so to speak, on the edge of the battlefield and continue to offer its mediatory services to the warring governments until they were accepted.

An easy mistake to make though, you'll hear more Brummie in Welshpool in August than Welsh that's for sure.

Other reptiles found in the district are the chamaeleon, geco and monitor lizard, the last getting extinct due to netting and shooting. It is now protected by law.