The Organochlorine Pesticides(OCPs),such as hexachlorocyclohexane(HCH)and dichlorodiphenyltrichloro ethane(DDT),are well known as typical persistent organic pollutions(POPs).They were worldwide used several decades ag...The Organochlorine Pesticides(OCPs),such as hexachlorocyclohexane(HCH)and dichlorodiphenyltrichloro ethane(DDT),are well known as typical persistent organic pollutions(POPs).They were worldwide used several decades ago,even today in some area.Although the water resource is very important in natural environments and essential to agriculture,the pollution of OCPs in water has emerged as worldwide environmental problem. Wuhan section of the Yangtze River is the drinking water source of Wuhan area in Hubei province.In addition,Hubei province is an important production base of grain,cotton,oil and pig.As the rapid development of industry and mass-use of OCPs展开更多
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
文摘The Organochlorine Pesticides(OCPs),such as hexachlorocyclohexane(HCH)and dichlorodiphenyltrichloro ethane(DDT),are well known as typical persistent organic pollutions(POPs).They were worldwide used several decades ago,even today in some area.Although the water resource is very important in natural environments and essential to agriculture,the pollution of OCPs in water has emerged as worldwide environmental problem. Wuhan section of the Yangtze River is the drinking water source of Wuhan area in Hubei province.In addition,Hubei province is an important production base of grain,cotton,oil and pig.As the rapid development of industry and mass-use of OCPs
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
