Yadav D V, Mittal P K, Agarwal H C, Pillai M K
Pestic Monit J. 1981 Sep;15(2):80-5.
DDT residues in soil and earthworms from 50 sites in Delhi were monitored. DDT was detected in all but two samples each of soil and earthworms. Among DDT residues, p,p'-DDE was most common and was found in 48 samples each of soil and earthworms; p,p'-DDT was detected in only 43 soil samples and 46 earthworm samples. p,p'-TDE and o,p'-DDT were also present in smaller concentrations in 29 and 15 soil samples and in 43 and 25 earthworm samples, respectively. Maximum total DDT concentration of 2.6 ppm was detected in the soil from Durga Nagar in the vicinity of a DDT factory. The highest concentration of 37.7 ppm total DDT in earthworms was also obtained from the same site. The maximum concentration factor found in the earthworms was 551. The total DDT concentration in the earthworms and soil showed significant correlation.
对德里50个地点的土壤和蚯蚓中的滴滴涕残留情况进行了监测。除了两份土壤样本和两份蚯蚓样本外，其他样本中均检测到了滴滴涕。在滴滴涕残留中，p,p'-滴滴伊最为常见，在48份土壤样本和48份蚯蚓样本中均有发现；仅在43份土壤样本和46份蚯蚓样本中检测到了p,p'-滴滴涕。p,p'-滴滴滴和o,p'-滴滴涕在29份土壤样本和15份土壤样本中也有较低浓度存在，在43份蚯蚓样本和25份蚯蚓样本中也分别有发现。在一家滴滴涕工厂附近的杜尔加纳加尔土壤中检测到的滴滴涕总浓度最高，为2.6 ppm。蚯蚓中滴滴涕总浓度最高值为37.7 ppm，同样来自该地点。在蚯蚓中发现的最大浓缩系数为551。蚯蚓和土壤中的滴滴涕总浓度显示出显著相关性。
