article in the Telegraph
"Perfluorinated chemicals (PFCs) are used to make products like Teflon, as well as waterproof clothing, pesticides and upholstery.
Studies have also shown that they have leached in small quantities into the water supply, in part because they are contained in foam used by firefighters.
A new study found that exposure to high levels of the chemicals, which can remain in the environment and the body for decades, could leave women struggling to get pregnant.
Women with high levels of PFCs in their blood were up to one and a half times more likely to have taken more than a year to conceive or required fertility treatment than those with low levels.
The study, published in the journal Human Reproduction, warns that the levels of exposure to the chemicals necessary to reduce fertility "are common in developed countries".
Researchers looked at the levels of two of the chemicals, called perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS), in the bloodstreams of 1,240 women in Denmark who became pregnant between 1996 and 2002."
Women can improve their fertility by avoiding salt and salty food.
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