"In breaking up these compounds through filters, are we changing chemical compounds to make them ...

“What we don’t know is whether these very, very low levels cause a risk when ...

“I think that if they were present in a larger amount, we would have seen ...

“Simultaneous exposure to multiple drugs, each significantly below its individual ‘safe’ level, could result in ...

“My opinion is that most pharmaceuticals are at concentrations less than are probably problematic for ...