Polyfluorinated telomers in precipitation and surface water in an urban area of Japan.
Polyfluorinated telomers in precipitation and surface water in an urban area of Japan.
复制标题
DOI：
10.1016/j.chemosphere.2008.08.029
复制
发表时间：
2009
期刊：
影响因子：
8.8
通讯作者：
Manal A M Mahmoud;Anna Kärrman;S. Oono;Kouji H. Harada;A. Koizumi
中科院分区：
文献类型：
--
作者：
Manal A M Mahmoud;Anna Kärrman;S. Oono;Kouji H. Harada;A. Koizumi
尽管在世界各地的各种环境基质中都检测到了氟调聚醇(FTOHs)，但还没有进行过评估其在地表水或降水中的浓度的研究。因此，我们建立了一种灵敏可靠的方法来分析各种环境水样中存在的痕量6：2 FTOH、8：2 FTOH、10：2 FTOH、8：2 FTOAcr和8：2 FTOMethacr FTOlefin。6：2FTOH、8：2FTOH、10：2FTOH、8：2FTOAcr、8：2FTOMethacr的检出限分别为0.5、0.2、0.2、0.0 5、0.1ngL−1，回收率为5 7.8%~78.2%。对被测样品的液体和悬浮相进行了分析。分析表明，只有来自液体相的端粒醇存在。在被评估的FTOHs中，在任何环境样品中都没有发现6：2 FTOH和8：2 FTOMethacr FTOlefin。降水样品中8：2FTOH、10：2FTOH和8：2FTOAcr的平均浓度分别为1.97ngL、0.82和0.21ngL−1。地表水中8：2FTOH、10：2FTOH和8：2FTOAcr的最高浓度分别为3.38、4.06和0.16ngL−-1，分别出现在Daini-Neyagawa、Yamato和Kazaki河水中。污水处理厂出水FTOHs总浓度(23.2 ngL−1)明显高于地表水(10.8 ngL−1)。综上所述，这项研究的结果表明，释放到空气中的FTOHs污染雨水，而从水处理场所释放的FTOHs污染地表水。
Although fluorotelomer alcohols (FTOHs) have been detected in various environmental matrices worldwide, no studies have been conducted to evaluate their concentrations in surface water or precipitation. Therefore, we developed a sensitive and reliable method to analyze various environmental aqueous samples for the presence of trace levels of 6:2 FTOH, 8:2 FTOH, 10:2 FTOH, 8:2 FTOAcr and 8:2 FTOMethacr FTOlefin using gas-chromatography/mass-spectrometry. The recoveries obtained using this method ranged from 57.8% to 78.2% and the detection limits were 0.5, 0.2, 0.2, 0.05 and 0.1ngL−1for 6:2 FTOH, 8:2 FTOH, 10:2 FTOH, 8:2 FTOAcr and 8:2 FTOMethacr, respectively. Liquid and suspended phases of the examined samples were analyzed. The analysis revealed presence of telomer alcohols from the liquid phase only. Of the FTOHs evaluated, 6:2 FTOH and 8:2 FTOMethacr FTOlefin were not found in any of the environmental samples. The average concentrations of 8:2 FTOH, 10:2 FTOH and 8:2 FTOAcr of the precipitation samples were 1.97, 0.82 and 0.21ngL−1, respectively. In surface water samples, the highest concentrations of 8:2 FTOH, 10:2 FTOH and 8:2 FTOAcr were 3.38, 4.06 and 0.16ngL−1, which were observed in samples from the Daini-Neyagawa, Yamato and Kanzaki rivers, respectively. The total concentration of FTOHs in wastewater treatment plant effluents (23.2ngL−1) was much higher than that of surface water (10.8ngL−1). Taken together, the results of this study indicate that FTOHs released into the air contaminate rain and that those released from water disposal sites contaminate surface water.