Exposure Analysis of Bisphenol A in Surface Water Systems in North America and Europe
Exposure Analysis of Bisphenol A in Surface Water Systems in North America and Europe
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DOI：
10.1021/es900598e
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发表时间：
2009-08-15
影响因子：
11.4
通讯作者：
Hentges, Steven G.
中科院分区：
文献类型：
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作者：
Klecka, Gary M.;Staples, Charles A.;Hentges, Steven G.
这项研究是为了了解北美和欧洲水环境中双酚A(BPA)的暴露情况。1997至2007年间发表的89项调查报告了双酚A的浓度。根据加权观测值的分析(北美和欧洲分别为1068和848)，20-51%的淡水样本报告的双酚A浓度高于检测限值。北美和欧洲淡水地表水的双酚A浓度中位数分别为0.081和0.01mg/L，第95个百分位数分别为0.47mg/L和0.35mg/L。与淡水地表水相比，关于沉积物的数据有限，关于海洋生态系统的数据较少。北美(n=71)淡水沉积物的中位数和第90个百分位数浓度(第95个百分位数不可计算)分别为0.6和3.4 ng/g-dw，而欧洲(n=249)的中位数和第95个百分位数浓度分别为16和256 ng/g-dw。为了评估潜在的生态意义，我们将暴露浓度与现有的监管标准进行了比较，结果表明，暴露浓度可能对水生生态系统造成不利影响的地点的频率很低，但从一些高度城市化和工业地点收集的沉积物除外。
This study was conducted to develop a statistic a I understanding of exposures to bisphenol A (BPA) in aquatic environments in North America and Europe. Concentrations of BPA have been reported by 89 investigations published between 1997 and 2007. On the basis of an analysis of weighted observations (n = 1068 and 848 for North America and Europe, respectively), BPA was reported at concentrations above the detection limit in 20-51% of freshwater samples. Median BPA concentrations for fresh surface waters for North America and Europe were 0.081 and 0.01 mu g/L, respectively, while 95th percentiles were 0.47 and 0.35 mu g/L, respectively. In contrast to fresh surface waters, only limited data are available for sediments and less for marine ecosystems. For freshwater sediments in North America (n = 71), the median and 90th percentile concentration (the 95th percentile was not calculable) were 0.6 and 3.4 ng/g-dw, respectively, while the median and 95th percentile concentration in Europe (n = 249) were 16 and 256 ng/g-dw, respectively. To assess the potential ecological significance, we compared exposure concentrations with available regulatory criteria, The results suggest the frequency of locations in which concentrations are likely to cause adverse effects on aquatic ecosystems is low, with the exception of sediments collected from some highly urbanized and industrial locations.