�������t¶��

He referred to research on an herbicide, atrazine, in which scientists found that it “induces complete feminization and chemical castration” in certain frogs.

“Every spring in the midwest, a pulse of atrazine comes off the fields. Tough luck on you if you happen to be carrying a child during that period,” says Sedlak.

The single study it relied on, which found virtually no adverse reproductive impacts even at relatively high doses of atrazine, was funded by Syngenta.

It reversed a decision to ban a pesticide, chlorpyrifos, associated with impaired childhood brain development, and atrazine, linked to leukaemia.

"Human exposure to atrazine is linked to a number of serious health effects," according to a factsheet from Pesticide Action Network.