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首页> 外文期刊>Environmental Science & Technology >Occurrence and Source of Nitrosamines and Secondary Amines in Groundwater and its Adjacent Jialu River Basin, China
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Occurrence and Source of Nitrosamines and Secondary Amines in Groundwater and its Adjacent Jialu River Basin, China

机译：地下水及其邻邻嘉鲁江流域亚硝胺和仲胺的发生和来源

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摘要

The presence of mutagenic and carcinogenic nitrosamines in groundwater is of great concern. In this study, eight nitrosamines including N-nitrosodimethylamine (NDMA), N-nitrosodiethylamine (NDEA), N-nitrosomethy-lethylamine (NMEA), N-nitrosopyrrolidine (NPYR), N-nitro-somorpholine (NMOR), N-nitrosopiperidine (NPIP), N-nitrosodi-n-propylamine (NDPA), and N-nitrosodi-n-butyl-amine (NDBA) and corresponding secondary amines were investigated in shallow groundwater, river water, and waste-water samples collected from the Jialu River basin. The total concentrations of nitrosamines and secondary amines in groundwater were ND-101.1 ng/L and 0.36-4.38 μg/L, respectively. NDMA and its secondary amine DMA (44.7%/ 40.1%) were the predominant compounds in groundwater, followed by NDEA/DEA (21.7%/29.3%) and NDBA/DBA (26.4%/ 27.4%). Relatively high concentrations of these six compounds were also observed in river water that was influenced by the direct discharge of industrial and domestic wastewater. Using acesulfame as a quantitative population marker, the contribution of domestic sources to the concentrations of nitrosamines and secondary amines was 39-85% in downstream reaches of the Jialu River, and that of industrial sources was estimated to be 65-98% in other sites of the area. Both on-site leakage of domestic and industrial wastewater and leaching from river water would contribute to the occurrence of target pollutants in groundwater. The target pollutants posed a cancer risk of 4.12 × 10~(-5) to the local populations due to the direct usage of groundwater as potable water.
机译：地下水中诱变和致癌的亚硝胺的存在引起了极大关注。在这项研究中，八种亚硝胺包括N-亚硝基二甲胺（NDMA），N-亚硝基二乙胺（NDEA），N-亚硝基甲乙胺（NMEA），N-亚硝基吡咯烷（NPYR），N-亚硝基吗啉（NMOR），N-亚硝基哌啶（ NPIP），N-亚硝基二正丙胺（NDPA）和N-亚硝基二正丁胺（NDBA）以及相应的仲胺在浅层地下水，河水和从加鲁河收集的废水样品中进行了研究盆地。地下水中亚硝胺和仲胺的总浓度分别为ND-101.1 ng / L和0.36-4.38μg/ L。 NDMA及其仲胺DMA（44.7％/ 40.1％）是地下水中的主要化合物，其次是NDEA / DEA（21.7％/ 29.3％）和NDBA / DBA（26.4％/ 27.4％）。在工业用水和生活废水直接排放的影响下，河水中还发现了这六种化合物的相对较高的浓度。以乙酰磺胺酸作为定量的人口标记，在贾鲁河下游，国内来源对亚硝胺和仲胺浓度的贡献为39-85％，其他地方的工业来源估计为65-98％该地区。生活和工业废水的现场泄漏以及从河水中的浸出都会导致地下水中目标污染物的产生。由于直接使用地下水作为饮用水，目标污染物对当地居民构成了4.12×10〜（-5）的癌症风险。

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  • 来源
    《Environmental Science & Technology》 |2012年第6期|p.3236-3243|共8页
  • 作者

    Fujun Ma; Yi Wan; Guanxiang Yuan; Liping Meng; Zhaomin Dong; Jianying Hu;

  • 作者单位

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871 China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871 China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871 China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871 China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871 China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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