Abstract
This study provides the first data on distribution of phthalate Acid esters (PAEs) in surface sediment samples taken from Anzali Wetland, Iran. These samples were collected from 43 stations. Two PAEs consist of di(2-ethylhexylphthalate) (DEHP) and di-n-butyl phthalate (DnBP) were detected and the total concentrations of these two pollutants ranged from 0.25 to 43.12, 0.12 to 19.02μgg−1 dry weight, respectively. Among all the 43 samples analyzed, no sample was found to be free of DEHP and DBP, which indicates these two phthalate esters were ubiquitous in sediments. The concentrations in the near urban regions were higher than other regions because of higher discharge of PAEs from plastic materials in urbanized areas. Concentrations of PAEs were positively correlated with total organic carbon (TOC). Generally the median concentrations of DEHP and DnBP in the sediments were 15 and 14 times higher than the ERL. These results show that the Anzali wetland are highly polluted by major PAE congeners consist of DEHP and DnBP.
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