Paz J D
Pestic Monit J. 1976 Dec;10(3):96-100.
Data obtained from the Jordan watershed in 1971 revealed the presence of DDT and its metabolites at various levels along the food chain. Detectable levels of sigmaDDT in water of the Jordan River and two fish ponds ranged from 0.019 to 0.500 ppb, which is 1/10 to 1/500 the maximum level permitted in water by the U.S. Government. Mean residue in phytoplankton was 0.906 mug/g; in zooplankton the mean was 6.49 mug/g. SigmaDDT residue in fish of the Jordan watershed averaged 0.37 mg/kg in carp, 2.59 mg/kg in benith, and 3.34 mg/kg in sardines.
1971年从约旦河流域获取的数据显示，在食物链的各个层面都存在滴滴涕及其代谢物。约旦河以及两个鱼塘水中可检测到的总滴滴涕含量在0.019至0.500 ppb之间，这是美国政府规定的水中最大允许含量的1/10至1/500。浮游植物中的平均残留量为0.906微克/克；浮游动物中的平均值为6.49微克/克。约旦河流域鱼类中的总滴滴涕残留量，鲤鱼平均为0.37毫克/千克，贝尼思鱼为2.59毫克/千克，沙丁鱼为3.34毫克/千克。
