Polycyclic aromatic hydrocarbons (PAHs) in sediment and sea urchin (Echinometra mathaei) from the intertidal ecosystem of the northern Persian Gulf: Distribution, sources, and bioavailability. Issue 1 (15th October 2017)

• Record Type: Journal Article
• Authors: Keshavarzifard, Mehrzad; Moore, Farid; Keshavarzi, Behnam; Sharifi, Reza
• Is Part Of: Marine pollution bulletin. Volume 123:Issue 1/2(2017)
• Page Start: 373
• Page End: 380
• Publication Date: 2017-10-15
• Subjects: Polycyclic aromatic hydrocarbons (PAHs) -- Sediment -- Sea urchin (Echinometra mathaei) -- Bioavailability -- Intertidal zone -- Persian gulf; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2017.09.008
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The distribution, sources and bioavailability of polycyclic aromatic hydrocarbons (PAHs) in sediment and sea urchin ( Echinometra mathaei ) from the intertidal zone of the northern Persian Gulf were investigated. Total PAH concentrations varied from 12.8 to 81.25 and from 16.7 to 35 μg Kg − 1 dry weight in sediment and Echinometra mathaei, respectively. The PAH concentrations can be classified as low. Source identification and apportionment using diagnostic ratios and principal component analysis demonstrate that the combustion of fossil fuels, road traffic, combustion of natural gas and biomass, and oil spill could be considered as the main sources of PAH contamination. The first PAH biota-sediment accumulation factors (BSAF) data from sediment to Echinometra mathaei in the intertidal zone of the northern Persian Gulf were calculated, indicating accumulation of both lower and higher molecular weight PAHs, with a preferential accumulation of lower molecular weight PAHs. Highlights: PAHs were evaluated in sediments and sea urchin from Persian Gulf intertidal zone PAH levels could be classified as low in both sediment and sea urchin samples Petrogenic and pyrogenic sources with slight dominance of pyrogenic were recorded These findings indicate higher availability of LMW PAHs in the intertidal zone