Endocrine-disrupting substances: I. Relative risks of PFAS in drinking water.

Concentrations of per and polyfluorinated alkyl substances (PFAS) in drinking water are significantly lower than in vivo levels of the native target hormone. These concentrations are orders of magnitude lower than the hormone in question, particularly when corrected for transactivation. A pregnant woman can excrete about 7,000 μg/day of total estrogens.

[Strategies in the prevention and control of the Covid-19 pandemic caused by SARS-CoV-2. Environmental factors.].

The role that environmental factors can play in preventing and controlling the Covid-19 epidemic was explored and compared to that of influenza. Papers cited by the U.S.