Remember that ABC site where all those women were getting breast cancer? It’s being investigated as people were suspicious that it might have been linked to radio waves or other electromagnetic radiation.
Turns out it looks like being linked to contamination by Dieldrin. Naturally this is being disputed, because we can’t go worrying about every little chemical we pump into the environment, can we?
Though its links to cancer in humans are disputed by some, there’s plenty of evidence that it’s highly toxic to many species.
Which is probably why it used to be used in so many insect repellents… not to mention dust for the veggie patch.