Why are sewage effluents from cities considered one of the most potent source of estrogenic endocrine disruptors?

Question

Quizplus · Accepted Answer

The Answer is The use of ethynylestradiol in birth control pills and other medications used by women lead to concerns for its presence in sewage. One of the first publications on these estrogenic endocrine disruptors found feminization in fish downstream from the sewage outflow of the twin cities of Minneapolis and St. Paul into the Mississippi River. Pesticides coming from the agricultural drainage basin of the Minnesota River may also play some role in these effects as well.

Why Are Sewage Effluents from Cities Considered One of the Most