Occurrence of phthalate esters in surface water and sediments from the Pearl River Delta, Southern China

LI Ting; YIN Pinghe; ZHAO Ling

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Occurrence of phthalate esters in surface water and sediments from the Pearl River Delta, Southern China

LI Ting 1 #,YIN Pinghe 2 *,ZHAO Ling 3

1.Department of Chemistry, Jinan University, Guangzhou 510632

2.Research Center of Analysis and Test, Jinan University, Guangzhou 510632

3.Department of Environmental Engineering, Jinan University, Guangzhou 510632

*Correspondence author

#Submitted by

Subject:

Funding: the National Natural Science Foundation of China-Guangdong （No.No. U1133003）

Opened online: 2 June 2014

Accepted by: none

Citation: LI Ting,YIN Pinghe,ZHAO Ling.Occurrence of phthalate esters in surface water and sediments from the Pearl River Delta, Southern China[OL]. [ 2 June 2014] http://en.paper.edu.cn/en_releasepaper/content/4598552

Rapid developments of the Pearl River Delta (PRD) region in recent decades have resulted in the increasingly serious environmental pollution in and around the region. The 6 priority phthalate esters (PAEs) were investigated in surface water and sediment from seven estuaries within the PRD for assessing the ecological risk to the aquatic environment. The concentration of Σ6PAEs in surface water ranged from 1.26 to 28.1 μg L-1, with a mean concentration of 16.5 μg L-1. It was from 1.56 to 31.2 μg g-1 dw in sediment, with a mean concentration of 9.72 μg g-1 dw. DMP, DBP and DEHP were found in all samples, and they were the predominant PAEs in the region. The distribution of PAEs showed that more serious pollution was found in Humen and the consumption of PAEs was increased in the most recent years in the PRD region. Risk quotient of detected PAEs to the relevant aquatic organisms of fish, daphnids and algae indicated the possible threat for the aquatic environment due to the presence of DBP and DEHP.

Keywords:Phthalate esters; the Pearl River Delta; Surface water; Sediment

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