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从1968年以来对六六六残留物在环境中的分布作了分析研究。根据1963～1971年间《农药要览》里发表的统计数字估算出来,在这期间六六六的生产和应用,起初是逐年增加,到1968年达到最高,平均每公顷水田施用六六六丙体的数量达到890克,其中用量最高的地区为九州北部的福冈县和佐贺县,每公顷水田所用六六六丙体超过了4公斤。之后,到1970年,六六六用量锐降,最后在1971年4月六六六被政府宣布禁用。他们估算出来,逐年投入环境中的六六
Since 1968, the distribution of HCH residues in the environment has been analyzed. According to statistics published in the “Pesticide Facts” from 1963 to 1971, the production and application of 666 were initially increased year by year and reached the highest level in 1968, with an average of 666 per hectare of paddy field To 890 grams. Of these, Fukuoka and Saga prefectures in northern Kyushu accounted for more than 4 kg of hexacityi per hectare of paddy field. Then, by 1970, the volume of 666 dropped drastically and finally was banned by the government in 666 in April 1971. They estimate that they have been put into the environment sixty-six years ago