CAJ | 학술논문

分析调查了中国部分海域海水中溶解态有机氯农药(OCPs,25种)和多氯联苯(PCBs,6种)的残留分布特征.结果表明,所有采样点都不同程度地受到了OCPs和PCBs的污染,其中福建省福州平潭和莆田湄洲岛的OCPs污染较为严重,浓度分别达到1752.59和796.19 ng/L;而辽宁省的大连老虎滩OCPs污染较轻,浓度为53.63 ng/L.各采样点海域海水中HCHs污染程度一般高于DDTs,HCHs主要以早期残留为主;根据DDT/ DDTs的比值推测,在福州平潭、莆田湄洲岛和珠海淇澳岛水体显示有新的DDT输入.在各海域水体中溶解态PCBs的浓度为33.55～474.92 ng/L,均超过了美国环保局规定的海水浓度限值.因此目前我国沿海海域水体中持久性有机污染物有机氯农药和多氯联苯污染仍不能忽视.
분석조사료중국부분해역해수중용해태유궤록농약(OCPs,25충)화다록련분(PCBs,6충)적잔류분포특정.결과표명,소유채양점도불동정도지수도료OCPs화PCBs적오염,기중복건성복주평담화보전미주도적OCPs오염교위엄중,농도분별체도1752.59화796.19 ng/L;이요녕성적대련로호탄OCPs오염교경,농도위53.63 ng/L.각채양점해역해수중HCHs오염정도일반고우DDTs,HCHs주요이조기잔류위주;근거DDT/ DDTs적비치추측,재복주평담、보전미주도화주해기오도수체현시유신적DDT수입.재각해역수체중용해태PCBs적농도위33.55～474.92 ng/L,균초과료미국배보국규정적해수농도한치.인차목전아국연해해역수체중지구성유궤오염물유궤록농약화다록련분오염잉불능홀시.
The concentrations of organochlorine pesticides (OCPs,25) and polychlorinated biphenyls (PCBs,6) in seawater collected from China coast were investigated.The results showed that concentrations of OCPs ranged from 53.63 to 1752.59 ng/L in seawater,and the highest value was in Pingtan (Fuzhou) while the lowest value was in Laohutan (Dalian,Liaoling province).At all of sampling sites,the concentrations of DDTs and HCHs were lower than the limits of national seawater quality standards (class 1),and the concentration of HCHs was higher than that of DDTs.The ratios of DDT/DDTs showed new DDT into Pingtan (Fuzhou),Meizhoudao (Putian) and Qi'aodao (Zhuhai,Guangdong Province),whereas the isomers characteristics for HCHs showed the residues at all sampling sites.The concentrations of dissolved PCBs ranged from 33.55 to 474.92 ng/L in seawater,which were higher than the limit of EPA seawater quality standard.However,the occurrence of OCPs and PCBs in seawater along China coast should be concerned.