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首页> 外文期刊>Environmental Pollution >Low levels of persistent organic pollutants (POPS) in New Zealand eels reflect isolation from atmospheric sources
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Low levels of persistent organic pollutants (POPS) in New Zealand eels reflect isolation from atmospheric sources

机译：新西兰鳗鱼中持久性有机污染物（POPS）含量低反映了与大气源的隔离

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摘要

Polychlorinated biphenyls (PCBs) and organic pesticides (i.e., DDTs) were measured in long finned eels (Anguilla dieffenbachii) in 17 streams on the west coast of South Island, New Zealand. Very low levels of PCBs and low levels of ppDDE were found. The concentrations of PCBs and ppDDE were not correlated within sites indicating that different processes determined the levels of the two pollutants in New Zealand eels. The PCBs probably originate from atmospheric transport, ppDDE levels are determined by land use and are higher in agriculture areas. The low contamination level of these aquatic systems seems to be a function of a low input from both long and short-range transport as well as few local point sources.
机译：在新西兰南岛西海岸的17条溪流中的长鳍鳗鱼（Anguilla dieffenbachii）中测量了多氯联苯（PCBs）和有机农药（即DDTs）。发现PCB含量极低，而ppDDE含量极低。现场内多氯联苯和ppDDE的浓度不相关，表明不同的过程决定了新西兰鳗鱼中两种污染物的水平。多氯联苯可能源自大气运输，ppDDE含量由土地使用决定，在农业地区较高。这些水生系统的低污染水平似乎是由于长程和短程运输以及少量本地点源的低投入造成的。

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