Introduction to Organophosphorus Pesticides

The vast majority of organophosphorus pesticides produced in my country are pesticides, such as commonly used parathion, systemic phosphorus, malathion, dimethoate, trichlorfon and dichlorvos. Organophosphorus pesticides such as rodenticides. Organophosphorus pesticides are mostly phosphate esters or phosphorothioates.

The harmful effects of organophosphorus pesticides on humans range from highly toxic to low toxicity. It can inhibit acetylcholinesterase and cause acetylcholine to accumulate, causing muscarinic symptoms, nicotinic symptoms and central nervous system symptoms. In severe cases, it can lead to death due to pulmonary edema, cerebral edema, and respiratory paralysis. Severe acute poisoning also occurs delayed sudden death. Certain types of organophosphorus poisoning can cause delayed neuropathy 8 to 14 days after poisoning, and the activity of blood cholinesterase in those with organophosphorus poisoning decreases.