Combination of nitrate (N, O) and boron isotopic ratios with microbiological indicators for the determination of nitrate sources in karstic groundwater
Combination of nitrate (N, O) and boron isotopic ratios with microbiological indicators for the determination of nitrate sources in karstic groundwater
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DOI：
10.1071/en13036
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发表时间：
2013-10
影响因子：
4.3
通讯作者：
C. Briand;V. Plagnes;M. Sebilo;P. Louvat;T. Chesnot;Maude Schneider;P. Ribstein;P. Marchet
中科院分区：
文献类型：
--
作者：
C. Briand;V. Plagnes;M. Sebilo;P. Louvat;T. Chesnot;Maude Schneider;P. Ribstein;P. Marchet
提出了一种基于与微生物指标相关的硝酸盐和硼同位素组成测量的新方法，用于确定喀斯特地下水（法国西南地区）中硝酸盐的来源。硝酸盐和硼同位素数据表明硝酸盐来自动物（δ N-15-NO3- > 千分之 5，δ O-18-NO3- < 千分之 10，δ B-11 类似于千分之 25）。微生物检测（噬菌体）证实了动物来源的污染，并证明水从地表到地下水的快速转移（2-3 天）。
A new approach based on measurements of nitrate and boron isotopic composition associated with microbiological indicators for the determination of nitrate origin in karstic groundwater (SW, France) is presented. Nitrate and boron isotopic data indicate an animal source of nitrate (delta N-15-NO3- > 5 parts per thousand, delta O-18-NO3- < 10 parts per thousand and delta B-11 similar to 25 parts per thousand). Microorganism detection (bacteriophages) confirmed contamination from animal sources and proved fast water transfer (2-3 days) from surface to groundwater.