5-Year study of rainwater chemistry in a coastal mega-city in South   China

doi:10.1016/j.atmosres.2010.03.027

CORC > 北京大学 > 环境科学与工程学院

	5-Year study of rainwater chemistry in a coastal mega-city in South China
	Huang, Xiao-Feng ; Li, Xiang ; He, Ling-Yan ; Feng, Ning ; Hu, Min ; Niu, Yu-Wen ; Zeng, Li-Wu
刊名	atmospheric research
	2010
关键词	South China Acid rain Organic acids Source identification Anthropogenic pollution PEARL RIVER-DELTA WEAK ORGANIC ACIDITY CHEMICAL-COMPOSITION URBAN SITE WET PRECIPITATION AEROSOL-PARTICLES CARBOXYLIC-ACIDS DEPOSITION EMISSIONS ALDEHYDES
DOI	10.1016/j.atmosres.2010.03.027
英文摘要	South China is one of the major regions suffering from acid rain in the world, especially for its urban environments. However, long-term and comprehensive studies on rainwater chemistry in this region have been scarce in the literature. In order to characterize the current acid rain status in South China, a total of 208 rainfall events were collected and measured systematically at an urban site in Shenzhen, a mega-city on the southeast coast of China, from 2005 to 2009. The volume-weighted mean (VWM) pH was observed to be 4.56 during the five years, with an acid rain frequency of 84.6%. SO42- was the most abundant ionic species, followed by Ca2+, NH4+, H+, NO3-, Cl-, Na+, Mg2+, K+ and F- in sequence. Formic, acetic and oxalic acids together contributed 2.32% to the total organic carbon (TOC) content and 2.86% to the total free acidity. SO42-, NO3-, Ca2+, NH4+ and TOC presented a seasonal trend of being lower in summer and higher in winter, while the other species did not show clear seasonal patterns. Based on the dataset, the sources of the species in rainwater in Shenzhen were explored using different statistical techniques, which indicated strong impact of anthropogenic pollution on the rainwater chemistry in this area. (C) 2010 Elsevier B.V. All rights reserved.; Meteorology & Atmospheric Sciences; SCI(E); EI; 22; ARTICLE; 1-2; 185-193; 97
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/243468]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Huang, Xiao-Feng,Li, Xiang,He, Ling-Yan,et al. 5-Year study of rainwater chemistry in a coastal mega-city in South China[J]. atmospheric research,2010.
APA	Huang, Xiao-Feng.,Li, Xiang.,He, Ling-Yan.,Feng, Ning.,Hu, Min.,...&Zeng, Li-Wu.(2010).5-Year study of rainwater chemistry in a coastal mega-city in South China.atmospheric research.
MLA	Huang, Xiao-Feng,et al."5-Year study of rainwater chemistry in a coastal mega-city in South China".atmospheric research (2010).