Seasonal concentrations of organic contaminants at the fall line of the Susquehanna River basin and estimated fluxes to northern Chesapeake Bay, USA
Seasonal concentrations of organic contaminants at the fall line of the Susquehanna River basin and estimated fluxes to northern Chesapeake Bay, USA
复制标题
萨斯奎哈纳河流域下降线有机污染物的季节性浓度和美国切萨皮克湾北部的估计通量
DOI：
10.1002/etc.5620190428
复制
发表时间：
2000
影响因子：
4.1
通讯作者：
Cherie V. Miller
中科院分区：
文献类型：
--
作者：
Gregory Foster;K. Lippa;Cherie V. Miller
1994年，从萨斯奎哈纳河流域到美国切萨皮克湾北部的秋季线上，对几种杀虫剂和其他有机污染物的河流通量进行了量化。对1994年2月至12月在河流落水线上采集的基流和暴雨流样本进行了溶解和颗粒相污染物分析。有机氮和有机磷农药的测量浓度主要因其在农业领域的应用时间不同而不同。相反，多氯联苯(PCBS)、有机氯(OC)杀虫剂和多环芳烃(PAHs)等更具颗粒吸附能力的污染物的浓度与全年河流流量更直接相关。有机氮和有机磷农药的年排放通量几乎全部处于溶解相，而多氯联苯和有机碳杀虫剂的年通量主要分布在溶解相和颗粒相之间，而多环芳烃主要分布在颗粒相。
Riverine fluxes of several pesticides and other organic contaminants from above the fall line of the Susquehanna River basin to northern Chesapeake Bay, USA, were quantified in 1994. Base flow and storm flow samples collected at the fall line of the river from February to December 1994 were analyzed for both dissolved and particulate phase contaminants. Measured concentrations of the organonitrogen and organophosphorus pesticides varied mainly in response to the timing of their application to agricultural fields. Conversely, the concentrations of the more particle‐sorptive contaminants such as polychlorinated biphenyls (PCBs), organochlorine (OC) insecticides, and polycyclic aromatic hydrocarbons (PAHs) were more directly correlated with river flow throughout the year. Annual fluxes were almost entirely in the dissolved phase for the organonitrogen and organophosphorus pesticides, distributed between the dissolved and particulate phases for the PCBs and OC insecticides, and primarily in the particulate phase for the PAHs.