19 kinds of organochlorine pesticides(OCPs) in groundwater surface sediments of Chongqing typical karst areas were analyzed by GC-ECD.The total concentration range of OCPs was 4.73-286.03 ng/g,the concentration range ...19 kinds of organochlorine pesticides(OCPs) in groundwater surface sediments of Chongqing typical karst areas were analyzed by GC-ECD.The total concentration range of OCPs was 4.73-286.03 ng/g,the concentration range of DDTs was 0.35-181.78 ng/g and the concentration range of HCHs was nd-23.53 ng/g.As compared with those of other rivers domestic and abroad, the organchlorine pesticides in sediments of Chongqing typical karst areas is in the high level which indicates that the underground river in Chongqing typical karst areas has been highly polluted.The DDE/DDD展开更多
Hydrologic process,turbidity,suspended particles matters(SPM),major cations and TOC concentrations during two storm events in late April 2008 were monitored at Jiangjia Spring which is the outlet of Qingmuguan undergr...Hydrologic process,turbidity,suspended particles matters(SPM),major cations and TOC concentrations during two storm events in late April 2008 were monitored at Jiangjia Spring which is the outlet of Qingmuguan underground river system.Scanning electron microscopy(SEM) and energy disperse spectroscopy(EDS) analyses of SPM were展开更多
文摘19 kinds of organochlorine pesticides(OCPs) in groundwater surface sediments of Chongqing typical karst areas were analyzed by GC-ECD.The total concentration range of OCPs was 4.73-286.03 ng/g,the concentration range of DDTs was 0.35-181.78 ng/g and the concentration range of HCHs was nd-23.53 ng/g.As compared with those of other rivers domestic and abroad, the organchlorine pesticides in sediments of Chongqing typical karst areas is in the high level which indicates that the underground river in Chongqing typical karst areas has been highly polluted.The DDE/DDD
文摘Hydrologic process,turbidity,suspended particles matters(SPM),major cations and TOC concentrations during two storm events in late April 2008 were monitored at Jiangjia Spring which is the outlet of Qingmuguan underground river system.Scanning electron microscopy(SEM) and energy disperse spectroscopy(EDS) analyses of SPM were
