Knowledge Management System Of Institute of Earth Environment, CAS
| Chemical characteristics of rainwater in Sichuan basin, a case study of Ya'an | |
| Li, Yun-Chun1,2; Zhang, Meng1; Shu, Man1; Ho, Steven Sai Hang3; Liu, Zi-Fang4; Wang, Xian-Xiang1; Zhao, Xiao-Qing1 | |
| 2016-07-01 | |
| 发表期刊 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 卷号 | 23期号:13页码:13088-13099 |
| 文章类型 | Article |
| 摘要 | Rainwater chemistry was investigated at a semi-rural site in Ya'an, Sichuan basin with rain samples collected from May 2013 to July 2014. The rainwater pH values ranged from 3.25 to 6.86, with an annual volume-weighted mean (VWM) of 4.38, and the acid rain frequency was 74 %. Such severe acidification, 15 % of the total events showed a pH below 4.0, attributed to the deficiency of Ca2+, significant anthropogenic pollution contribution, and rainy pattern to this area. The annual VWM of total ions concentration was 477.19 mu cq/L. NH4+ was the most abundant ionic species, followed by SO42-, NO3-, Ca2+, Cl-, Na+, K+, Mg2+, and F- in a descending order. The total ionic concentrations presented a seasonal trend of lower values in autumn and summer but higher ones in winter and spring. Based on enrichment factor, correlation analysis and principle component analysis, three factors were identified: factor 1 (NH4+, SO42-, NO3-, K+, and Cl-, 47.45 % of the total variance) related to anthropogenic sources (coal/fuel combustion, biomass burning and agriculture), factor 2 (Ca2+, Mg2+, Na+, and Cl-, 34.01 % of the total variance) associated with natural sources, and factor 3 (H+, 11.78 % of the total variance) related to free acidity. Back trajectory analysis indicates that the rainwater chemistry in Ya'an was mainly affected by regional air masses from Sichuan basin. Long-range transported air masses from southwest with heavy anthropogenic pollution increased the total ion concentration and acidity of rainwater. Considering its special topography, anthropogenic emissions from regional and long-range transport (especially from southwest) must be controlled effectively to improve the acid rain condition of non-urban areas in Sichuan basin. |
| 关键词 | Acid Rain Chemical Composition Sources Identification Sichuan Basin |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1007/s11356-016-6363-4 |
| 关键词[WOS] | STRONTIUM ISOTOPE CHARACTERIZATION ; LONG-TERM TREND ; WET DEPOSITION ; PRECIPITATION CHEMISTRY ; INORGANIC-IONS ; SOUTH CHINA ; URBAN SITE ; SOUTHWESTERN CHINA ; MAJOR IONS ; ACID-RAIN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:000378817300046 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5721 |
| 专题 | 黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Sichuan Agr Univ, Coll Sci, Yaan 625014, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710075, Peoples R China 4.Environm Monitoring Stn Yaan City, Yaan 625014, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yun-Chun,Zhang, Meng,Shu, Man,et al. Chemical characteristics of rainwater in Sichuan basin, a case study of Ya'an[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(13):13088-13099. |
| APA | Li, Yun-Chun.,Zhang, Meng.,Shu, Man.,Ho, Steven Sai Hang.,Liu, Zi-Fang.,...&Zhao, Xiao-Qing.(2016).Chemical characteristics of rainwater in Sichuan basin, a case study of Ya'an.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(13),13088-13099. |
| MLA | Li, Yun-Chun,et al."Chemical characteristics of rainwater in Sichuan basin, a case study of Ya'an".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.13(2016):13088-13099. |
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| Chemical characteris（1000KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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