摘要
对白洋淀水体、底泥及鲫鱼肌肉中的ＤＤＴ及其衍生物和ＢＨＣ的残留量进行了测定研究，分别给出含量范围．研究表明，鱼体肌肉中ＢＨＣ的４种异构体的含量顺序（δ＞α＞γ＞β）与其在水和底泥中的含量顺序（α＞γ＞δ＞β）略有不同．鱼体肌肉中ＤＤＴ主要以代谢物Ｐ，Ｐ′ＤＤＥ形式存在．两种农药的污染具有明显的地域差异，位于府河入淀口及村庄附近的水体、底泥及鱼体肌肉中ＤＤＴ及其衍生物，ＢＨＣ含量较高，与１９７５—１９７７年检测结果相比，鲫鱼肌肉中ＤＤＴ及其衍生物残留量下降了５４２％，ＢＨＣ下降了８６９％．
DDT derivative, BHC, and their metabolites were analyzed in water, sediments and fish(Carassius auratus) muscles from six sampling stations in Baiyangdian Lake. None of the specimens monitored exceeds relevant national standards. The mean concentrations of total DDT derivatives and BHC are 0.25μg/L and 1.4μg/L in water. Total DDT derivatives and BHC range 0.56—2.26μg/kg and 0.59—2.26μg/kg (dry wt.) in sediment and range 9.2—19.4 μg/kg with mean value of 14.1μg/kg and 14.1—30.9 μg/kg with mean value of 20.9μg/kg(wet wt.) in Carassius auratus muscle, respectively. Relatively high residue levels of total DDT derivatives and BHC were detected in Dongxiangyang, Wangjiazhai and Guolikou areas of the lake. Compared with historical data, decreases of 54.2% in total DDT and 86.9% in BHC in fish muscle were demonstrated.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1998年第3期308-312,共5页
Acta Scientiae Circumstantiae
基金
中国科学院"八.五"重点项目
关键词
DDT
BHC
白洋淀
鲫鱼
水体污染
底泥
DDT, BHC, Baiyangdian Lake, Carassius auratus, sediment, fish.
