Environmental Protection Agency (EPA) has made a controversial decision to reverse its earlier stance and not ban the use of tetrachlorvinphos (TCVP), a toxic pesticide and member of the organophosphate chemical family commonly found in pet flea collars and other flea products. Initially approved for use on food crops and livestock, TCVP's crop applications were voluntarily de-registered in 1987. However, it still continues to be widely used on pets and farm animals and is highly toxic to pollinators. One of the concerning aspects of TCVP is the lack of comprehensive research on its human health effects. The Agency for Toxic Substances and Disease Registry, an organization tasked with assessing chemical risks, notably lacks a fact sheet for TCVP. Tetrachlorvinphos is banned for use in the European Union.The classification of TCVP as "possibly carcinogenic to humans" by the World Health Organization underscores the need for rigorous scrutiny and protective measures.
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