I lived in Corby for a few years in the 90s/2000s, DH was brought up there.
The birth defects were known about even then, I remember it in the paper when we lived there. A relative has a now adult child with severe disabilities which, we'll never know whether they were caused by pollution or not.
After MaggieT and her mates closed 90% of the works, a lot of the former workers and their families went back to Scotland* but many more stayed and were essentially abandoned by successive governments. I worked for the LA and the only time you saw a politician was around election time to have their photo taken against the backdrop of a derelict building on the Lincoln estate, then they fucked off until next election.
It's an absolute fucking scandal.
*Scots were the single largest demographic but many Welsh, Irish, Eastern Europeans (post-war) also moved there.
And yes, Corby has it's own distinctive accent. It doesn't actually sound Scottish to me as I'm a "real" Scot but apparently it sounds Scottish to other English people even though Corby Millennials will be at least 3rd Generation "immigrants".