防止和降低套种食用作物残毒的措施王兆信施尚泽李琼英闫建平四川省农科院棉花所简阳６４１４０１宣传历史事故成因，提高防污保健意识。据１９８０年简阳市卫生防疫站分别在云龙、三星等植棉区抽样检验，其中受有机氯污染的占８２．６％，超国家法定允许量标准的占２６％... Measures to Prevent and Reduce Residues of Intercropping Edible Crops Wang Zhaoxin, Shi Shangze, Li Qiongying, Yan Jianping Cotton Production Institute, Sichuan Academy of Agricultural Sciences, Jianyang 641401 Propaganda the cause of historical accidents and improve awareness of pollution prevention and health care. According to the Jianyang Sanitary and Anti-Epidemic Station in 1980, samples were taken from cotton paddies in Yunlong and Samsung, respectively, of which 82.6% were contaminated with organic chlorine and 26% exceeded the statutory allowable standards of the state.