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首页> 外文期刊>Journal of Environmental Engineering >Polychlorinated Biphenyls in Urban Lake Sediments and Migration Potential from Urban Stormwater in Bergen, Norway
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Polychlorinated Biphenyls in Urban Lake Sediments and Migration Potential from Urban Stormwater in Bergen, Norway

机译：挪威卑尔根城市湖泊沉积物中的多氯联苯和城市雨水的迁移潜力

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Polychlorinated biphenyl (PCB) concentrations from an Cs-137 age-dated core extracted from urban lake sediments in Bergen, Norway reflect the time period from the global introduction of PCB to the legal ban of their usage in Norway (1980). PCB concentrations in the sediment deposited after the ban of PCB usage strongly suggests that there are sources still active in the urban environment today. Earlier studies and results within this study imply that these sources could be standing building mass. The main pollution pathway from source to recipient is implied to be stormwater. This study presents a long-term measured amount of suspended particles in urban stormwater. An impervious, small urban catchment (5,800 m(2)) releases almost 800 kg of suspended solids per year in stormwater. This suggests that the whole drainage area of the lake potentially contributes 9.5 t of particles via stormwater into the lake each year, potentially carrying 0.4 g of PCBsum7. (C) 2015 American Society of Civil Engineers.
机译：从挪威卑尔根城市湖泊沉积物中提取的Cs-137年代久远的岩心中的多氯联苯（PCB）浓度反映了从全球引入PCB到挪威法律禁止使用PCB的时间段（1980年）。禁止使用多氯联苯后沉积物中沉积物中的多氯联苯浓度强烈表明，当今城市环境中仍存在活跃的来源。较早的研究和该研究中的结果表明，这些资源可能来自建筑物。从源头到接收者的主要污染途径被认为是雨水。这项研究提出了对城市雨水中悬浮颗粒物的长期测量。一个不透水的小型城市集水区（5,800 m（2））每年在雨水中释放近800公斤的悬浮固体。这表明，湖泊的整个流域每年可能通过雨水贡献9.5吨的颗粒物进入湖泊，潜在地携带0.4 g的PCBsum7。 （C）2015年美国土木工程师学会。

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