Concentration and distribution of 17 organochlorine pesticides (OCPs) in seawater from the Japan Sea northward to the Arctic Ocean
Concentration and distribution of 17 organochlorine pesticides (OCPs) in seawater from the Japan Sea northward to the Arctic Ocean
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日本海向北至北冰洋海水中 17 种有机氯农药 (OCP) 的浓度和分布
DOI：
10.1007/s11426-010-0182-0
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
研究了17种典型有机氯农药在表层海水中的组成及其在日本海、鄂霍次克海、白令海、楚科奇海和北冰洋的分布规律。它们的浓度各不相同，但大致有两种水平，一种是大多数六氯环己烷异构体的L−1，另一种是其他化学品的低于0.1 ng L−1。在17种目标化合物中，六六六占主导地位，总浓度百分比一般在50%以上，七氯和艾氏剂在分散的站点也有较高的浓度百分比。与以前的报告相比，讨论了所审议的五个海区的若干目标化学品的历史长期趋势。通过比较所有五个海区的浓度变化，对个别化学品进行了海区间比较。在北部海域，即白令海、楚科奇海和北冰洋，大多数目标化合物的浓度变化较大。17种目标化合物的总浓度从日本海到鄂霍次克海再到白令海再到北冰洋，总体呈递增趋势。α-六氯环己烷和γ-六氯环己烷的纬向趋势不同，并从热力学性质的差异讨论了造成这种差异的原因，这可能是它们在大气长程输送驱动下向北输送时产生的略有不同的分馏效应。通过分析α-HCH/γ-HCH比值确定了六六六的来源，无一例外地小于4，表明具有技术六六六和林丹混合物的成分特征。此外，还讨论了B80站α-六氯环己烷、γ-六氯环己烷的垂直分布及其比值。300m以下各层分布格局基本一致，300m以下各层分布格局基本一致。利用垂直剖面对比了B80站的水团分布，并在此基础上初步划分了4个层。
Seventeen classic organochlorine pesticides in surface seawater were studied in terms of their composition pattern as well as their distribution pattern in the areas covering the Japan Sea, Okhotsk Sea, Bering Sea, Chukchi Sea and Arctic Ocean. Their concentrations varied, but roughly two levels were seen with one ranging between 0.1 and 1 ng L−1for most HCH isomers and the other lower than 0.1 ng L−1for other chemicals. Of the 17 target compounds, HCHs were dominant with a total concentration percentage generally more than 50%, and a relatively high concentration percentage of heptachlor and aldrine was also observed at scattered stations. The historical long-term trend of several target chemicals in the five sea zones considered was discussed in comparison with previous reports. Inter-sea zone comparison was carried out for individual chemicals by comparing the concentration variation in all five sea zones. A higher variation in concentration was generally found in the northern sea zones, namely the Bering Sea, Chukchi Sea and Arctic Ocean, for most target compounds. The sum concentration of the 17 target chemicals displayed a general trend of increasing northward from the Japan Sea to the Okhotsk Sea to the Bering Sea to the Arctic Ocean. Different latitudinal trends were found for α-HCH and γ-HCH, and the reason of this difference was discussed by considering their divergence of thermodynamic properties, which could contribute to a slightly different fractionation effect during their northward transport driven by atmospheric long range transport. The source of the HCHs was identified by analyzing the α-HCH/γ-HCH ratio, which was less than 4 without exception, indicating a component characteristic featuring a mixture of technical HCHs and lindane. In addition, the vertical distribution of α-HCH, γ-HCH and their ratio at station B80 was discussed. Different patterns were found in the upper 300 m while in layers from 300 m downward to 3500 m the patterns were fairly comparable. The vertical profiles were used to correlate the water mass distribution, based on which four layers were tentatively classified at station B80.
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影响因子：
11.4
作者：
Derek C. G. Mulr;R. Norstrom;M. Simon
通讯作者：
Derek C. G. Mulr;R. Norstrom;M. Simon
DOI：
10.1016/j.scitotenv.2004.10.033
发表时间：
2005-12
期刊：
The Science of the total environment
影响因子：
--
作者：
G. Stern;C. Macdonald;D. Armstrong;B. Dunn;C. Fuchs;L. Harwood;D. Muir;B. Rosenberg
通讯作者：
G. Stern;C. Macdonald;D. Armstrong;B. Dunn;C. Fuchs;L. Harwood;D. Muir;B. Rosenberg
影响因子：
3.3
作者：
M. Cameron;T. Metcalfe;C. Metcalfe;C. Macdonald
通讯作者：
M. Cameron;T. Metcalfe;C. Metcalfe;C. Macdonald
基于固相萃取与顶空固相微萃取-气相色谱-电子捕获检测器相结合的北极水样中17种有机氯农药的超痕量分析
影响因子：
4.1
作者：
Qiu, Canrong;Cai, Minggang
通讯作者：
Cai, Minggang
影响因子：
11.4
作者：
NORSTROM, RJ;SIMON, M;SCHWEINSBURG, RE
通讯作者：
SCHWEINSBURG, RE