GYIG OpenIR  > 环境地球化学国家重点实验室  > 期刊论文
Chemical composition of rainwater and anthropogenic influences in Chengdu, Southwest China
Hua Wang; Guilin Han
Corresponding AuthorGuilin Han
2011
Source PublicationAtmospheric Research
Volume99Issue:2Pages:190-196
AbstractA comprehensive study on the chemical compositions of rainwater was carried out from Jan. to Dec. in 2008 in Chengdu. a city located on the acid rain control zone of southwest China. All samples were analyzed for pH and major ions (F(-), Cl(-), NO(3)(-), SO(4)(2-), K(+), Na(+), Ca(2+), Mg(2+), and NH(4)(+)). The pH increased due to the result of neutralization caused by the base ions. It was observed that Ca(2+) was the most abundant cation with a VWM value of 196.6 mu eq/L (17.3-1568.7 mu eq/L), accounting for 49.7% (9.4%-79.2%) of the total cations. SO(4)(2-) was the most abundant anion with VWM value of 212.8 mu eq/L (41.8-1227.6 mu eq/L). SO(4)(2-) and NO(3)(-) were dominant among the anions, accounting for 90.4%-99.1% of the total measured anions. The concentrations of NO(3)(-) were higher than the most polluted cities abroad, which indicated Chengdu has been a severe polluted city over the world. The high fuel consumption from urbanization and the rapid increase of vehicles resulted in the high emission of SO(2) and NO(x), which were the precursor of the high concentration of acidic ions NO(3)(-) and SO(4)(2-). It was the main reason of the severe acid rain in Chengdu. The high concentrations of alkaline ions (mainly Ca(2+), NH(4)(+)) in Chengdu city atmosphere have played an important role to neutralize the acidity of rainwater and the pH value has increased by 0.7 units since 1989. It is worth noting that the emission of NO(x) from the automobile exhaust is increased and is becoming the important precursor of acid rain now. 
KeywordAcid Rain Major Ions So42− No3− Southwest China
Subject Area环境地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/7019
Collection环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
Corresponding AuthorGuilin Han
Recommended Citation
GB/T 7714
Hua Wang,Guilin Han. Chemical composition of rainwater and anthropogenic influences in Chengdu, Southwest China[J]. Atmospheric Research,2011,99(2):190-196.
APA Hua Wang,&Guilin Han.(2011).Chemical composition of rainwater and anthropogenic influences in Chengdu, Southwest China.Atmospheric Research,99(2),190-196.
MLA Hua Wang,et al."Chemical composition of rainwater and anthropogenic influences in Chengdu, Southwest China".Atmospheric Research 99.2(2011):190-196.
Files in This Item:
File Name/Size DocType Version Access License
Chemical composition(330KB) 开放获取LicenseView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hua Wang]'s Articles
[Guilin Han]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hua Wang]'s Articles
[Guilin Han]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hua Wang]'s Articles
[Guilin Han]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Chemical composition of rainwater and anthropogenic influences in Chengdu, Southwest China.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.