CAJ | 학술논문

对2006年5～2007年11月北京地区雨水中溶解态有机氯农药(OCPs)的组成特征进行分析并对其进行源解析.结果表明,DDTs、HCHs、七氯、氧丹、六氯苯、艾氏剂和狄氏剂7种OCPs被检出,其平均浓度分别为(6.66±4.99)ng/L,(10.30±12.39)ng/L,(2.69±1.87)ng/L,(6.54±4.58)ng/L,(3.99±3.02)ng/L,(2.10±1.40)ng/L和(2.25±1.58)ng/L.OCPs的总浓度在研究期间内呈总体下降趋势,表明北京地区的OCPs污染得到了较好的控制.通过对特征化合物的解析发现,有疑似的林丹和三氯杀螨醇的输入源,各化合物之间显著的相关性说明OCPs的输入途径相似.雨水中的OCPs含量与温度不相关;与降雨量和相对湿度有弱的负相关性;其沉降通量与空气中污染物的浓度相关,与降水量相关性不显著.
대2006년5～2007년11월북경지구우수중용해태유궤록농약(OCPs)적조성특정진행분석병대기진행원해석.결과표명,DDTs、HCHs、칠록、양단、륙록분、애씨제화적씨제7충OCPs피검출,기평균농도분별위(6.66±4.99)ng/L,(10.30±12.39)ng/L,(2.69±1.87)ng/L,(6.54±4.58)ng/L,(3.99±3.02)ng/L,(2.10±1.40)ng/L화(2.25±1.58)ng/L.OCPs적총농도재연구기간내정총체하강추세,표명북경지구적OCPs오염득도료교호적공제.통과대특정화합물적해석발현,유의사적림단화삼록살만순적수입원,각화합물지간현저적상관성설명OCPs적수입도경상사.우수중적OCPs함량여온도불상관;여강우량화상대습도유약적부상관성;기침강통량여공기중오염물적농도상관,여강수량상관성불현저.
Characteristics and sources of dissolved organochlorine pesticides (OCPs) in the rainwater in Beijing were analyzed. Seven kinds of OCPs were detectable from May 2006 to November 2007. Mean concentrations of HCHs, DDTs, heptachlor, chlordane, hexachlorobenzene, aldrin and dieldrin in the dissolved phase were (6.66 ± 4.99) ng/L, (10.30 ±12.39) ng/L, (2.62 ±1.87) ng/L, (6.54 ± 4.58) ng/L, (3.99 ±3.02)ng/L, (2.10 ±1.40) ng/L and (2.25 ± 1.58) ng/L, respectively. OCPs Contents decreased during the study period, indicating the previous controlling measurement taking effects. By analyzing the source, it was notable that there were still some possible inputs of γ-HCH and dicofol. Every compound detected had significant correlation with each others indicating the common source of OCPs in the rainwater in Beijing. The total concentration of OCPs had no correlation with the sampling temperature while had weak reverse correlations with the mount of precipitation and relative humidity. The deposition flux was significantly related to the concentrations of targets in the atmosphere while weakly to the mount of precipitation.