Identifying the nonpoint source of perfluorinated compounds using a geographic information system based approach
Identifying the nonpoint source of perfluorinated compounds using a geographic information system based approach
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DOI：
10.1897/08-194.1
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发表时间：
2009-04
影响因子：
4.1
通讯作者：
Y. Zushi;S. Masunaga
中科院分区：
文献类型：
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作者：
Y. Zushi;S. Masunaga
全氟化合物（PFCs）已在许多地方被检测到。据报告，它们也来自非点源，但这些来源的来源尚未查明。在本研究中，我们试图在隼渊河，日本，贯穿城市地区，使用地理信息系统（GIS）和统计分析的非点源的PFCs的特征。我们还估计了日本作为一个整体，从非点源的年度PFC负荷，确定了一个规模相当于从污水处理厂（STPs），范围是每年几吨，每个PFC。全氟化合物污染的河水被发现增加时，河流收到的排水面积高比例的商业和/或运输用地。研究还发现，更多的PFCs从火车站所在的流域排放。这一结果可以解释为，在靠近火车站的地方，商业和运输用途的土地使用很普遍，而且这些地区的污水含有高浓度的全氟化学品。这些研究结果表明，火车站可以作为PFCs非点源的指示器。
Perfluorinated compounds (PFCs) have been detected in a wide range of places. They have also been reported to come from nonpoint sources, but the origin of these sources has not been identified. In the present study, we attempted to characterize the nonpoint source of PFCs in the Hayabuchi River, Japan, which runs through an urban area, using a geographic information system (GIS) and statistical analysis. We also estimated annual PFC loads from nonpoint sources in Japan as a whole, determining a magnitude comparable to that from sewage treatment plants (STPs); the range was a few tons per year for each PFC. Perfluorinated compound pollution in river water was found to increase when the river received drainage from an area with a high proportion of commercial and/or transportation land use. It was also found that more PFCs were discharged from the watersheds where train stations are located. This result could be interpreted as the use of land for commercial and transportation purposes is prevalent in close proximity to train stations, and that the effluents from those areas contain high concentrations of PFCs. These findings suggested that train stations could be indicators of nonpoint sources of PFCs.