CAJ | 학술논문

利用气相色谱对北京石景山区大气中气态和总悬浮颗粒物中有机氯农药(OCPS)含量进行了分析测定.结果表明,北京石景山区大气中气态和颗粒物中HCHs、p,p'-DDT、p'p-DDE、p,p'-DDD、o,p'-DDT、七氯、氯丹的平均含量分别为:4344.4.1000.2,778.0,213.4,1319.3,645.7,376.6 pg/m3和37.3,5.3,0,0.7,15.8,1.6,0.6 pg/m3,有机氯农药主要以气态存在于大气中.HCHs和DDTs是有机氯农药类污染物的主要成分,两者之和在气态和颗粒物中所占总OCPs的比例分别为87.2%和90.9%.α-HCH/γ-rHCH和p,p'-DDE/p,p'-DDT的浓度比值分别<1.5和<1.0,表明新近该区大气中有γ-HCH和DDT的输入.三氯杀螨醇的使用是环境中DDTs的一个重要来源.
이용기상색보대북경석경산구대기중기태화총현부과립물중유궤록농약(OCPS)함량진행료분석측정.결과표명,북경석경산구대기중기태화과립물중HCHs、p,p'-DDT、p'p-DDE、p,p'-DDD、o,p'-DDT、칠록、록단적평균함량분별위:4344.4.1000.2,778.0,213.4,1319.3,645.7,376.6 pg/m3화37.3,5.3,0,0.7,15.8,1.6,0.6 pg/m3,유궤록농약주요이기태존재우대기중.HCHs화DDTs시유궤록농약류오염물적주요성분,량자지화재기태화과립물중소점총OCPs적비례분별위87.2%화90.9%.α-HCH/γ-rHCH화p,p'-DDE/p,p'-DDT적농도비치분별<1.5화<1.0,표명신근해구대기중유γ-HCH화DDT적수입.삼록살만순적사용시배경중DDTs적일개중요래원.
The atmospheric organochiorine pesticides(OCPs)in the Shijingshan District of Beijing was analyzed by gas chromatography(GC).It was found that the concentration of HCHs,p,p'-DDT,p,p'-DDE,p,p'-DDD,o,p'-DDT,heptachlor,chlordane was 4344.4,1000.2,778.0,213.4,1319.3,645.7 and 376.6 pg/m3 in the gas phase and was 37.3,5.3,0,0.7,15.8,1.6,0.6 pg/m3 in the particle phase,respectively.The OCPs were mostly existed in the gas phase.HCHs and DDTs were the most abundant compounds in the atmosphere which totally accounted for 87.2% in gas phase and 90.9% in the particle phase.The concentrations ratio of α-HCH/γ-HCH and p,p'-DDE/p,p'-DDT were<1.5 and<1.0,respectively,indicating some new input of γ-HCH and DDT in the Beijing area.Most ofthe atmospheric OCPs in Beijing air were from the historical usage.The application of dicofol is a possible new source of DDT in the environment.