CAJ | 학술논문

以辽河支流条子河中的多环芳烃(PAHs)和有机氯农药(OCPs)为目标物,分别于春汛期、丰水期、平水期和枯水期采集水样及表层沉积物样品,分析样品中 PAHs 和 OCPs 的赋存状态及污染物在该区域的分布和来源.结果表明：条子河水中总 PAHs 的质量浓度为658.1~3096.6 ng/L,均值(算术平均值,下同)为1522.1 ng/L；沉积物中总PAHs的质量比为775.7~2835.4 ng/g,均值为1374.0 ng/g；条子河水中总α,β,γ-HCHs(六六六)的质量浓度为5.36~16.57 ng/L,均值为10.93 ng/L；滴滴涕(DDTs)未检出；沉积物中总HCHs的质量比为2.87~5.56 ng/g,均值为4.34 ng/g；条子河水和沉积物中PAHs 的含量均为自上游至下游递减,且枯水期>平水期>春汛期>丰水期；条子河水中 HCHs的质量浓度自上游至下游递增,且丰水期>春汛期>平水期>枯水期,沉积物中 HCHs的质量比自上游至下游递减,且枯水期>平水期>春汛期>丰水期；条子河中的 PAHs 主要来源于煤炭燃烧和交通燃烧,HCHs主要来源于农药林丹的使用.
이료하지류조자하중적다배방경(PAHs)화유궤록농약(OCPs)위목표물,분별우춘신기、봉수기、평수기화고수기채집수양급표층침적물양품,분석양품중 PAHs 화 OCPs 적부존상태급오염물재해구역적분포화래원.결과표명：조자하수중총 PAHs 적질량농도위658.1~3096.6 ng/L,균치(산술평균치,하동)위1522.1 ng/L；침적물중총PAHs적질량비위775.7~2835.4 ng/g,균치위1374.0 ng/g；조자하수중총α,β,γ-HCHs(륙륙륙)적질량농도위5.36~16.57 ng/L,균치위10.93 ng/L；적적체(DDTs)미검출；침적물중총HCHs적질량비위2.87~5.56 ng/g,균치위4.34 ng/g；조자하수화침적물중PAHs 적함량균위자상유지하유체감,차고수기>평수기>춘신기>봉수기；조자하수중 HCHs적질량농도자상유지하유체증,차봉수기>춘신기>평수기>고수기,침적물중 HCHs적질량비자상유지하유체감,차고수기>평수기>춘신기>봉수기；조자하중적 PAHs 주요래원우매탄연소화교통연소,HCHs주요래원우농약림단적사용.
Water and surface sediment samples were collected from the Tiaozi River,a branch of Liaohe River,in spring,summer,autumn and winter to determine the contents of polycyclic aromatic hydrocarbons (PAHs)and organochlorine pesticides (OCPs).On this basis,the distribution and sources of the two organic pollutants were investigated.Results indicate that the total PAHs levels in the water samples were 658.1—3 096.6 ng/L (arithmetic mean:1 522.1 ng/L)and those in the sediments were 775.7—2 835.4 ng/g (1 374.0 ng/g).α,β,γ-Hexachlorocyclohexanes (HCHs)were detected in all the samples and the total HCHs were 5.36—16.57 ng/L (10.93 ng/L)in the water samples and 2.87—5.56 ng/g (4.34 ng/g)in the sediments.Dichlorodiphenyl trichloroethanes (DDTs)in all the samples were below the detection limit.Temporospatial distributions of PAHs in the river water and sediments were similar:the PAHs levels decreased in the order of winter>autumn>spring>summer and decreased from the upstream to the downstream.In contrast,temporospatial distributions of HCHs in the river water and sediments were opposite:HCHs levels in the water decreased in the order of summer>spring>autumn>winter and reduced from the downstream to the upstream;HCHs levels in the sediments decreased in the order:winter>autumn>spring>summer and decreased from the upstream to the downstream.The results for source identification of PAHs and HCHs reveal that PAHs in the river were mainly from the combustion of coal and transportation, and HCHs were from the past use of lindane.