Roadside picnic was a good book to read, and I was surprised that I didn't find it depressing. It takes place in a small town in roughly-Canada, where an alien exclusion zone has spawned that is very much like a radioactive dump: People around it experience mutations, people at the site when it spawned lost their lives or were injured in weird ways, you should only enter the zone in a special suit, but of course people do enter without one anyways. This was published 14 years before Chernobyl, mind.