TCPy
Encyclopedia
TCPy or 3,5,6-trichloro-2-pyridinol is a metabolite of chlorpyrifos
and chlorpyrifos-methyl, both organophosphate
insecticides. A study in Massachusetts reported a correlation between exposure to TCPy and lower testosterone
levels in men. According to this source, exposure is "widespread" and of "potential public health importance".
Chlorpyrifos
Chlorpyrifos is a crystalline organophosphate insecticide that inhibits acetylcholinesterase and is used to control insect pests. It is known by many trade names...
and chlorpyrifos-methyl, both organophosphate
Organophosphate
An organophosphate is the general name for esters of phosphoric acid. Phosphates are probably the most pervasive organophosphorus compounds. Many of the most important biochemicals are organophosphates, including DNA and RNA as well as many cofactors that are essential for life...
insecticides. A study in Massachusetts reported a correlation between exposure to TCPy and lower testosterone
Testosterone
Testosterone is a steroid hormone from the androgen group and is found in mammals, reptiles, birds, and other vertebrates. In mammals, testosterone is primarily secreted in the testes of males and the ovaries of females, although small amounts are also secreted by the adrenal glands...
levels in men. According to this source, exposure is "widespread" and of "potential public health importance".