“The methods haven’t been developed for looking at them.”“There are lots of other kindred chemicals that just haven’t been reported,” De Silva said. Government research has found the presence of a chemical used in pesticides in fish, birds and a mammal from the St. Lawrence River to the south Florida coast. De Silva decided to look into PFPIAs because little is known about them, even though they are widely used in pesticides. “We can report that a cormorant from the Great Lakes had five nanograms per (millilitre) of PFPIA in its blood. “In terms of the impact on the organism, we don’t have that information.”Some toxicity studies are being done on PFPIAs in both the United States and Canada.

Source: thestar September 28, 2016 23:03 UTC