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六六六是高残留杀虫剂,它可以在自然界通过食物链进行生物富集。人类处于食物链的最高位置,因此人可以通过种种途径直接或间接将微量六六六摄入体内,並在脂肪体中累积。测定证明,使用六六六较多的国家,人体中都有较高的积存量。我国自50年代初开始生产和使用六六六,在农业生产起过重要的作用,这是有目共睹的。但是大量、长期使用带来的种种问题也一直为人们关心和忧虑。 六六六的取代工作已有多年,並在一些地区取得了显著效果。现在有关部门已经决定加快取代步伐,争取在短期内大幅度减少六六六的用量,如果这个计划实现,六六六产生的种种问题无疑将会好转。但是,既使如此六六六在环境中的各环节中的影响也不会立即消失。国外的经验证明,全面禁止使用六六六的几年内,人体六六六含量虽逐渐减少,但仍然有少量
BHC is a high residual pesticide that can bioaccumulate through the food chain in nature. Human beings are in the highest position of the food chain, so people can directly or indirectly through various means into the body trace levels of six six six, and accumulated in fat body. Measurement shows that the use of more countries in 666, the human body has a higher stock. It is obvious to all that our country has been producing and using 666 since the early 1950s and played an important role in agricultural production. However, the problems caused by large-scale and long-term use have always been people’s concern and anxiety. The replacement of 666 has been going on for many years and has achieved remarkable results in some areas. Now that the departments concerned have decided to speed up the pace of their replacement and strive to drastically reduce the dosage of 666 in the short term, if this plan is put in place, the problems arising from the issue of 666 will undoubtedly improve. However, even so, the impact of the BHC on the environment will not disappear immediately. Foreign experience shows that within a few years of a total ban on the use of 666, although the content of hexacosta 66 is gradually decreasing, there are still a few