TONS OF RELEASED DRUGS taint U.S. water. I’d like to know the concentrations, though — other studies I’ve seen are in the parts-per-trillion level, which is extremely tiny. Words like “traces” or “evidence of” don’t tell you much.

UPDATE: A reader sends this on oral contraceptives in the water supply. Do we need better sewage treatment? I’d like to see more hard data, and less speculation.