Title: Analysis on the Change of Chemical Composition of Acid Rain in Zhengzhou
Abstract: Based on analysis of atmospheric precipitation information from 2000 to 2006,the chemical composition and trend of acid rain in Zhengzhou City was studied.The results show that the pH value of precipitation has decreased year by year,the frequency of acid rain presents an increasing trend,the total ion content of rainfall is increasing,and soot characteristics lies in the acid rain.The scope of SO2-4/NO-3 is from 1.49 to 3.56 and decreases year by year,which shows that the acid rain in Zhengzhou has changed from sulfuric acid rain type to sulfuric and nitric acid rain complex type.The range of Ca2+/ NH+4 is from 0.71 to 1.20 and show a increasing trend,and the effect of Ca2+ on neutralization rainfall acidity is more and more significant on a yearly basis.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 1
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