Dtchlorodiphenyltrichchloioethane (DDT) is a type of persistent organochlorine pollutant, which can result in cancer--and other diseases bybioaccumulation. It has two forms p,//-DDT and off-DDJ pp"-DDT can be degraded to ppf-DDE under aerobic condition and to p,//-DDD under anaerobiccondition-^sThis work studies its spatial distribution characteristics at different altitudes and depths in the soil.'in the neighborhood of Chengdu City, DeyangCity and Leshan City, the concentration of DDTs is more than 4,62 ng/g, greater than in other areas. As altitude increases, the concentration of DDT in the soildecreases, DDT in the low altitude area (basin centre) was the source for the high altitude area (basin edge) through the process of atmospheric transfer andsedimentation. The reason for high concentration DDT in Leshan City is that there is high content DDT residues and new DDT pesticide (Dicofol). Hghconcentration DDT in soil has an effect on plant and human.
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机译：二氯二苯苯基螺旋氯丙酮（DDT）是一种持续的有机氯污染物，可导致癌症和其他疾病BybioAccululatulatulation。它具有两个形式p，// - ddt和off-ddj pp“-ddt可以在有氧条件下降解到ppf-dde，并且在anaerobiccondition-^ sthis工作下的ddd下的ddd研究其在不同海拔地区的空间分布特征和土壤中的深度。在成都市，脱阳和乐山市的附近，DDT的浓度超过4,62 ng / g，大于其他地区。随着海拔高度增加，SOINCECREAS中的DDT浓度，低空区域（盆地中心）中的DDT是通过大气转移和心脏过程的高海拔地区（盆地边缘）的源极。乐山市高浓度DDT的原因是达到含量高达残留物和新的DDT农药（Dicofol）。土壤中的Hghconcorderation DDT对植物和人类有影响。
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