Occurrence of phthalate esters in water and sediment of urban lakes in a subtropical city, Guangzhou, South China.

Occurrence of phthalate esters in water and sediment of urban lakes in a subtropical city, Guangzhou, South China. Research Abstract Details 

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Occurrence of phthalate esters in water and sediment of urban lakes in a subtropical city, Guangzhou, South China. Abstract Text:

Feng Zeng,Kunyan Cui,Zhiyong Xie,Min Liu,Yangjie Li,Yujun Lin,Zunxiang Zeng,Fangbai Li,

Extensive use of phthalate esters (PAEs) in both industrial processes and consumer products has resulted in the ubiquitous presence of these chemicals in the environment. This study reports the first data on the concentrations of 16 phthalate esters (PAEs) in water and sediments of the urban lakes in Guangzhou City. PAEs were detected in all samples analyzed, mainly originating from urban stormwater runoff, atmospheric deposition, as well as untreated discharge of industrial wastewater and municipal sewage. The Sigma(16)PAEs concentrations in water and sediments ranged from 1.69 to 4.72 mug L(-1) and 2.27 to 74.94 mug g(-1)-dry weight (dw), with the mean concentrations of 2.91 mug L(-1) and 20.85 mug g(-1)-dw, respectively, which indicates that sediment is a significant sink for PAEs. Variability of the Sigma(16)PAEs concentrations in water and sediment in the urban lakes was almost consistent. The spatial distribution of PAEs was site-specific. Of the 16 PAEs, DMP, DEP, DnBP, DiBP, DMPP, and DEHP were present in all water and sediment samples. DnBP was abundant in water (53.0-81.2%), while no single dominant congener was found in sediments. The abundances of DiBP were similar to those of DEHP, and DiBP and DEHP collectively accounted for 77.2-97.6% of the Sigma(16)PAEs concentrations. Congener specific analysis confirmed that DnBP was a predictive indicator for the dissolved summation operator(16) PAEs concentration (correlation coefficient r=0.968, p<0.01), and that DiBP was a predictive indicator for the sediment summation operator(16) PAEs concentration (r=0.975, p<0.01). As compared to the results for other studies, the urban lakes of Guangzhou were moderately polluted by PAEs.

Occurrence of phthalate esters in water and sediment of urban lakes in a subtropical city, Guangzhou, South China. Publishing Authors By Initials

F Zeng,K Cui,Z Xie,M Liu,Y Li,Y Lin,Z Zeng,F Li,

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Occurrence of phthalate esters in water and sediment of urban lakes in a subtropical city, Guangzhou, South China. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Environment international

VOLUME: 34

Page Numbers: 372-80

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ISSN: 0160-4120

DAY: 3

MONTH: 10

YEAR: 2007

Occurrence of phthalate esters in water and sediment of urban lakes in a subtropical city, Guangzhou, South China. Information

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LANGUAGE: eng

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MEDLINETA: Environ Int

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