what is paraquat
Overview. Paraquat is a toxic herbicide that has been related to several hundred cases of fatal human poisoning. Paraquat poisoning has mainly been due to deliberate oral ingestion (for suicide or murder), but there are a few cases of accidental direct ingestion.Although paraquat is now rarely used in the United States, it is still widely applied in developing countries.araquat poisoning has mainly been due to deliberate oral ingestion (for suicide or murder), but there are a few cases of accidental direct ingestion. Although paraquat is now rarely used in the United States, it is still widely applied in developing countries.