You think estrogen is a naturally occurring part of our ecosystem?
Of course it is, but not in those concentrations.
Yes, estrogen is a naturally occurring part of the ecosystem. And I’d really like to see reliable data on historic concentrations adjusted for the increasing sensitivity of measurement techniques. When a buffalo or caribou goes by the concentrations is local streams must increase some, even a few centuries back.
Endocrine disruptor claims have been going on for years. Might be true. Might not. Case hasn’t been made.