کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581639 | 1453159 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Seasonal distribution of phthalate esters in surface water of the urban lakes in the subtropical city, Guangzhou, China
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
Urban lakes are vulnerable to the accumulation of toxic and/or potentially toxic contaminants, such as phthalate esters (PAEs) from urban stormwater runoff, atmospheric deposition, as well as untreated discharge of industrial wastewater and municipal sewage. The concentrations of 16 PAEs in surface water from 15 urban lakes in the subtropical city, Guangzhou, were measured, respectively in spring, summer and winter 2006, to elucidate the effect of the seasonal variation in climate conditions on the distribution of PAEs. Seasonal variations of the Σ16PAEs concentrations, ranging, respectively from 0.47 to 6.19 μg Lâ1 and from 24.9 to 221 μg gâ1, were measured in the dissolved and suspended particulate matter (SPM) phases. The highest concentrations of PAEs were present in summer. The spatial distribution of PAEs was site-specific. Of the 16 PAEs, dimethyl phthalate (DMP), diethyl phthalate (DEP), diisobutyl phthalate (DiBP), di-n-butyl phthalate (DnBP), di(4-methyl-2-pentyl) phthalate (DMPP), di(2-ethylhexyl) phthalate (DEHP) were present in all the samples analyzed, and dominated by DnBP, DiBP and DEHP. Composition profile of PAEs indicated that the application of DnBP/DiBP is relatively high in the Pearl River Delta (PRD). Longer/branching alkyl PAEs likely adsorb to SPM in aquatic environments. Normalized partition coefficient (KOC) between the dissolved water and SPM was correlated with n-octanol/water partition coefficient (KOW) to understand the environmental behavior of PAEs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 169, Issues 1â3, 30 September 2009, Pages 719-725
Journal: Journal of Hazardous Materials - Volume 169, Issues 1â3, 30 September 2009, Pages 719-725
نویسندگان
Feng Zeng, Jiaxin Wen, Kunyan Cui, Lina Wu, Min Liu, Yangjie Li, Yujun Lin, Fang Zhu, Zhiling Ma, Zunxiang Zeng,