DOI: 10.1016/j.atmosenv.2014.03.013
Scopus记录号: 2-s2.0-84896272440
论文题名: Atmospheric dry plus wet deposition and wet-only deposition of dicarboxylic acids and inorganic compounds in a coastal suburban environment
作者: Tsai Y ; I ; , Kuo S ; -C ; , Young L ; -H ; , Hsieh L ; -Y ; , Chen P ; -T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 696
结束页码: 706
语种: 英语
英文关键词: Dicarboxylic acids
; Dry deposition
; Ion balance
; Neutralization
; Rainwater
; Wet deposition
Scopus关键词: Calcium
; Dust
; Inorganic compounds
; Organic acids
; Oxalic acid
; Principal component analysis
; Rain
; Dicarboxylic acid
; Dry deposition
; Ion balance
; Neutralization
; Rainwater
; Wet deposition
; Deposition
; ammonia
; calcium
; chlorine
; dicarboxylic acid
; inorganic compound
; magnesium
; malonic acid
; oxalic acid
; potassium
; rain
; sodium ion
; succinic acid derivative
; anthropogenic effect
; carboxylic acid
; coastal zone
; dry deposition
; inorganic compound
; marine atmosphere
; neutralization
; photochemistry
; rainwater
; spatiotemporal analysis
; suburban area
; volume
; wet deposition
; article
; atmospheric deposition
; dry deposition
; dust
; pH
; principal component analysis
; priority journal
; seashore
; suburban area
; Taiwan
; wet deposition
; Taiwan
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: This study investigated the chemical properties and composition sources of dicarboxylic organic acids and inorganic salts in dry plus wet deposition (DWD) and wet-only deposition at a coastal suburban area in southern Taiwan in 2008. DWD is the accumulation of dry deposition and wet deposition from the beginning of each new rain event, while wet-only deposition is the wet deposition from the beginning of each new rain event only. A total of 60 samples were collected during the period of study. The wet-only deposition samples were slightly more acidic (pH 5.01-5.50) than the DWD samples (pH 5.51-6.00). The total volume-weighted mean (VWM) equivalent ionic concentration of 784.3±431.1μeqL-1 in DWD was higher than that of 682.2±392.4μeqL-1 in wet-only deposition. In both types of deposition the major cation species were Ca2+, Na+ and NH4+, and the major anion species were HCO3-, Cl- and non-sea salt (nss) nss-SO42 Total dicarboxylic acids contributed only 0.60% and 0.45% of the total ionic equivalent concentration in DWD and wet-only deposition, respectively, and oxalic and malonic acids were the major dicarboxylic acid species. DWD to wet-only deposition species concentration ratios (DWD/W ratios) were always higher than 1.0. DWD contained more water-soluble inorganic salts and dicarboxylic acids than wet-only deposition, with DWD/W ratios of the dust-bound species K+, Mg2+ and Ca2+ as large as 1.6-1.8 and those from photochemical species nss-SO42- and NH4+ of 1.36 and 1.29, respectively. These ratios show that the dry deposition flux of dust is greater than that of photochemical particles. In addition, the 1.81 ratio for oxalic acid shows that oxalic acid is easier to remove from the atmosphere via dry deposition than malonic and succinic acids. Probable deposition composition sources for both DWD and wet-only deposition, investigated using principal component analysis, were marine spray, photochemical inorganic products, and terrestrial origin and photochemical organic products. As the study site is close to the coast, marine spray deposits as dry deposition, and the anthropogenic dicarboxylic acids deposit together with resuspended crustal materials. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81248
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Resources Management, Chia Nan University of Pharmacy and Science, 60, Sec. 1, Erren Rd., Rende Dist., Tainan City 71710, Taiwan; Department of Medicinal Chemistry, Chia Nan University of Pharmacy and Science, 60, Sec. 1, Erren Rd., Rende Dist., Tainan 71710, Taiwan; Department of Occupational Safety and Health, China Medical University, 91 Hsueh-Shih Rd., North Dist., Taichung City 40402, Taiwan; Department of Chemistry, National Cheng Kung University, 1, University Rd., East Dist., Tainan City 70101, Taiwan; Department of Leisure and Recreation Management, Chung Hua University, 707, Sec. 2, Wufu Rd., Hsinchu City 30012, Taiwan
Recommended Citation:
Tsai Y,I,, Kuo S,et al. Atmospheric dry plus wet deposition and wet-only deposition of dicarboxylic acids and inorganic compounds in a coastal suburban environment[J]. Atmospheric Environment,2014-01-01,89