In aquatic ecosystems, progesterone (P4) and synthetic progestins (gestagens) originate
from excretion by humans and livestock. Synthetic progestins are used for contraception and …

Synthetic progestins (PGs) are a large family of hormones used in continuously growing
amounts in human and animal contraception and medicinal therapies. Because wastewater …

Around 20 progestins (also called gestagens, progestogens, or progestagens) are used
today in assisting a range of medical conditions from endometrial cancer to uterine bleeding …

Although it is well known that estrogenic steroidal hormones are able to affect the sexual
development and reproduction of fish at low concentrations, no data on environmental …

The aquatic environment is polluted with thousands of chemicals. It is currently unclear
which of these pose a significant threat to aquatic biota. The typical exposure scenario is …

Progesterone (P4) and synthetic progestins (gestagens) from contraceptives and hormone
therapy occur in treated wastewater and surface water, and they may have adverse effects …

Synthetic progestins are widely used as a component in both contraceptives and in hormone
replacement therapy (HRT), both on their own and in combination with EE2. Their presence …

Fish and other aquatic wildlife, including frogs, turtles, and alligators, have been used as
vertebrate sentinels for the effects of endocrine disrupting and other emerging chemicals of …

The presence of endocrine active compounds such as estrogens in treated wastewater
effluent and their effects on aquatic life are causing concern among aquatic resource …

Abstract High concentrations (375 ng/L) of the steroid hormone progesterone (P4) were
measured in snowmelt runoff associated with large livestock‐feeding operations in …