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淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成

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陈自祥, 柳后起, 刘广, 刘颖, 尹雪斌. 淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成[J]. 环境化学, 2012, 31(12): 1855-1864.
引用本文: 陈自祥, 柳后起, 刘广, 刘颖, 尹雪斌. 淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成[J]. 环境化学, 2012, 31(12): 1855-1864.
shu
CHEN Zixiang, LIU Houqi, LIU Guang, LIU Ying, YIN Xuebin. Tracing nitrogen sources and cycle in freshwater system using nitrogen and oxygen isotopic values in nitrate[J]. Environmental Chemistry, 2012, 31(12): 1855-1864.
Citation: CHEN Zixiang, LIU Houqi, LIU Guang, LIU Ying, YIN Xuebin. Tracing nitrogen sources and cycle in freshwater system using nitrogen and oxygen isotopic values in nitrate[J]. Environmental Chemistry, 2012, 31(12): 1855-1864.
shu

淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成

  • 1.

    中国科学技术大学地球和空间科学学院, 合肥, 230001;

  • 2.

    中国科学技术大学香港城市大学联合高等研究中心,环境科学技术联合实验室, 苏州, 215123

  • 基金项目:

    江苏省太湖水专项基金(BK2007736)资助.

Tracing nitrogen sources and cycle in freshwater system using nitrogen and oxygen isotopic values in nitrate

  • 1.

    School of Earth and Space Science, University of Science and Technology of China (USTC), Hefei, 230001, China;

  • 2.

    Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-CityU, Suzhou, 215123, China

  • Fund Project:

  • 摘要: 氮营养盐污染在全球很多区域都是一个备受关注的环境问题,尤其是以农业为主的区域和人口密集的区域,因此,关于水体中氮污染源识别技术尤为重要.硝酸根离子中的氮、氧同位素组成在过去的十几年中频繁地应用于识别淡水水体中氮污染源的研究中.本文总结了已知氮污染源中氮、氧同位素组成的特征变化区间,阐述了影响氮、氧同位素组成的主要因素,描述了3种氮、氧同位素组成主流的测试方法,展望了未来定量测算各种氮污染源贡献比例的前景.在实际研究中,还将氮、氧同位素组成和水体化学特征结合,则可以有效地识别淡水水体的氮污染源.随着检测精度的不断提高,各种代表性端元污染物同位素值经验区间也变得更加准确.
    Abstract: Nitrogen nutrient pollution is an environmental issue in many regions of the world, which attracts numerous concerns, especially in predominantly agricultural areas and densely populated areas. Hence, the identification of nitrogen pollution sources is particularly important. Nitrogen and oxygen isotopic compositions in nitrate have been frequently applied to identify nitrogen sources in freshwater systems during the past ten years. This article summarizes the range of nitrogen and oxygen isotopic compositions in known nitrogen pollution sources, elaborates the main factors to impact nitrogen and oxygen isotopic compositions, describes three mainstream testing methods to determine nitrogen and oxygen isotopic compositions, and proposes how to quantify the contributions of various nitrogen sources. The joint use of dual isotopic compositions and hydrochemistry can effectively identify the nitrogen sources in freshwater systems. With the continuous improvement of detection accuracy, the empirical range of isotopic values in representative endmember pollutants becomes more accurate.
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  • 收稿日期:  2012-03-01
陈自祥, 柳后起, 刘广, 刘颖, 尹雪斌. 淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成[J]. 环境化学, 2012, 31(12): 1855-1864.
引用本文: 陈自祥, 柳后起, 刘广, 刘颖, 尹雪斌. 淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成[J]. 环境化学, 2012, 31(12): 1855-1864.
shu
CHEN Zixiang, LIU Houqi, LIU Guang, LIU Ying, YIN Xuebin. Tracing nitrogen sources and cycle in freshwater system using nitrogen and oxygen isotopic values in nitrate[J]. Environmental Chemistry, 2012, 31(12): 1855-1864.
Citation: CHEN Zixiang, LIU Houqi, LIU Guang, LIU Ying, YIN Xuebin. Tracing nitrogen sources and cycle in freshwater system using nitrogen and oxygen isotopic values in nitrate[J]. Environmental Chemistry, 2012, 31(12): 1855-1864.
shu

淡水水体中氮污染源的识别 ——利用硝酸根中氮和氧同位素组成

  • 1.  中国科学技术大学地球和空间科学学院, 合肥, 230001;
  • 2.  中国科学技术大学香港城市大学联合高等研究中心,环境科学技术联合实验室, 苏州, 215123
  • 收稿日期:  2012-03-01
基金项目:

江苏省太湖水专项基金(BK2007736)资助.

摘要: 氮营养盐污染在全球很多区域都是一个备受关注的环境问题,尤其是以农业为主的区域和人口密集的区域,因此,关于水体中氮污染源识别技术尤为重要.硝酸根离子中的氮、氧同位素组成在过去的十几年中频繁地应用于识别淡水水体中氮污染源的研究中.本文总结了已知氮污染源中氮、氧同位素组成的特征变化区间,阐述了影响氮、氧同位素组成的主要因素,描述了3种氮、氧同位素组成主流的测试方法,展望了未来定量测算各种氮污染源贡献比例的前景.在实际研究中,还将氮、氧同位素组成和水体化学特征结合,则可以有效地识别淡水水体的氮污染源.随着检测精度的不断提高,各种代表性端元污染物同位素值经验区间也变得更加准确.

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