我们在博斯顿·莱克,评估了器官的污染 Xinjiang,中国,由测量 organochlorine 杀虫剂(OCP ) 和多不的芳香的烃的集中和分布(哼) 。水和沉积样品为分析在湖从 19 个地点(B1-B19 ) 被收集。我们的分析结果证明在从 30.3 ~ 91.6 ng/L 的水范围的全部的 OCP 的集中和集中哼范围从无法发现(ND ) 到 368.7 ng/L。在表面的全部的 OCP 的集中(即,湖底部) 从 6.9 ~ 16.7 ng/g 的沉积范围和集中哼从 25.2 ~ 491.0 ng/g 。Hexachlorocyclohexanes (HCH ) 和 dichlorodiphenyltrichloroethanes (DDT ) 说明 OCP 的大比例。低 - 到水和沉积里的 -HCH 比率,样品从两个工业产品和六氯化苯显示可能的贡献。水里的 DDT 可能从历史的输入,而在沉积的 DDT 从历史、最近的输入。而且,水和沉积里的 DDT 产品来自在湖(B11, B12, B13,和 B14 ) 的西北的部分的多重来源。为 DDT 异构体的易逃逸比率(p, p-DDE 和 p, p-DDT ) 在这些,地点通常比平衡价值高。这些结果建议来自 Kaidu 河和到水的从沉积的 DDT 的散开的输入为 DDT 负责水里的污染。Lower-molecular-weight 哼,它首先从木头和煤燃烧和石油来源发源,代表专业水和沉积里的 PAHs 的部分取样。我们的调查结果显示那 OCP 并且在博斯顿·莱克哼能首先被归因于人的活动。对 OCP 的一个风险评价并且然而,从博斯顿·莱克在水和沉积里哼建议集中是还没对原因足够高水的生态系统上的不利生物效果。
We evaluated organic pollution in Bosten Lake, Xinjiang, China, by measuring the concentrations and distributions of organochlorine pesticides (OCPs) and polycyclic aromatic hydrocarbons (PAHs). Water and sediment samples were collected from 19 sites 031-1319) in the lake for analysis. Our analytical results show that the concentrations of total OCPs in water ranges from 30.3 to 91.6 ng/L and the concentrations of PAHs ranges from undetectable (ND) to 368.7 ng/L. The concentrations of total OCPs in surface (i.e., lake bottom) sediment ranges from 6.9 to 16.7 ng/g and the concentrations of PAHs ranges from 25.2 to 491.0 ng/g. Hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) account for large proportions of the OCPs. Low α- to γ-HCH ratios in both water and sediment samples indicate possible contributions from both industrial products and lindane. DDTs in water are probably from historical input, whereas DDTs in sediments are from both historical and recent inputs. Moreover, DDT products in both water and sediments were from multiple sources in the northwestern part of the lake(B11, B12, B13, and B14). Fugacity ratios for DDT isomers (p,p'-DDE and p,p'-DDT) at these sites were generally higher than equilibrium values. These results suggest that the input from the Kaidu River and diffusion of DDTs from the sediment to the water are responsible for DDT pollution in the water. Lower-molecular-weight PAHs, which originate primarily from wood and coal combustion and petroleum sources, represent the major fraction of the PAHs in both water and sediment samples. Our findings indicate that OCPs and PAHs in Bosten Lake can be attributed primarily to human activities. A risk assessment of OCPs and PAHs in water and sediment from Bosten Lake, however, suggests that concentrations are not yet high enough to cause adverse biological effects on the aquatic ecosystem.