| 南京市降水化学成分特征及变化趋势 |
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| 引用本文： | 涂俊. 南京市降水化学成分特征及变化趋势[J]. 上海环境科学, 1999, 18(10): 451-453 |
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| 作者姓名： | 涂俊 |
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| 作者单位： | 南京市环境监测中心站 南京 |
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| 摘 要： | 通过对１９９２－１９９８年南京市降水化学成分特征及其变化趋势的分析，表明南京市降以化明显，但无恶化迹象，降水化学成分中ＳＯ＾２－４对酸化起主要作用，但其作用呈下降趋势，而ＮＯ＾－３，Ｃｌ＾－的作用呈上升趋势。Ｃａ＾２＋，ＮＨ＾４＋在中和降水的酸性方面起十分重要的作用，Ｃａ＾２＋的作用逐渐减弱，而ＮＨ＾＋４的作用则逐渐增大。
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| 关 键 词： | 降水酸化 化学成分 离子 变化趋势 南京市 酸雨 |
Characteristics and Trend of Chemical Composition of Precipitation in Nanjimg |
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| Tu Jun. Characteristics and Trend of Chemical Composition of Precipitation in Nanjimg[J]. Shanghai Environmental Science, 1999, 18(10): 451-453 |
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| Authors: | Tu Jun |
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| Abstract: | Analysis on chemical composition of precipitation in Nanjing from 1992 to 1998 showed that precipitation acidification was obvious, but not worse. The contribution of SO42- to precipitation acidification was most important among chemical composition, but it was decreasing with NO3- and Cl- increasing.The contribution of Ca2 and NH4 to neutralization of precipitation were most important, and that of Ca2 was decreasing while NH4 was increasing |
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| Keywords: | Precipitation acidification Contribution of ions Chemical composition Characteristics Trend Nanjing |
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