BHC is a toxic substance with moderate toxicity. In production, transportation, storage and use, it is required to avoid entering the human body through oral, respiratory and skin contact to produce toxic effects. Intergovernmental maritime organizations suggest that HCH is a toxic substance, which requires special packaging and labeling, storage requirements, and should be shipped separately from food such as grain; Attention should be paid to cleaning up the pollution of means of transport. Due to the potential harm of HCH, many countries in the world have taken measures to stop production and use, and China is no exception. However, there are still a certain number of HCH products in some areas, which may even be used, so we should pay attention to the poisoning accidents caused by them.
When other isomers were replaced by HPHCH, the good insecticidal effect of HCH pesticide was maintained, thus eliminating the chronic residual toxicity of α and β-HCH isomers. Because β isomer is the most stable isomer with the longest duration in the environment and the most serious chronic toxicity, the accumulation capacity of β isomer in adipose tissue is 10-30 times higher than that of γ isomer. According to the results provided by EPA, almost 65,438+0,000% Americans have β-HCH residues, so diet and environmental contact are the main sources of pollution. Only by banning the use of HCH can we really solve the problem.
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