Distribution and ecotoxicological significance of polycyclic aromatic hydrocarbons in sediments from Iko River estuary mangrove ecosystem

被引：0

作者：

Joseph P. Essien

Stephen I. Eduok

Abass Abiola Olajire

机构：

[1] University of Uyo,Department of Microbiology

[2] Ladoke Akintola University of Technology,Industrial and Environmental Chemistry Unit, Department of Pure and Applied Chemistry

来源：

Environmental Monitoring and Assessment | 2011年 / 176卷

关键词：

PAHs; Sediments; Ecotoxicology; Niger Delta; Nigeria;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The distribution of polycyclic aromatic hydrocarbons (PAHs) in epipelic and benthic sediments from Iko River estuary mangrove ecosystem has been investigated. Total PAHs ranged from 6.10 to 35.27 mg/kg dry weight. Quantitative difference between the total PAHs in epipelic and benthic sediments showed that the benthic sediment known for higher capability to serve as sink for chemical pollutants accumulated less PAHs. This implies that PAHs in the epipelic sediment may plausibly be from industrial sources via runoff and/or of biogenic origin. A strong pyrolytic source fingerprint has been detected with slight influence of petrogenic sources. Total organic carbon normalized PAHs (sum of 16 PAHs, 59.7 to 372.4 mg/kg OC) were under (except for ES3 and BS3) the threshold effects concentrations (TEC, 290 mg/kg OC). Total PAHs in Iko River estuary sediments were in the range between ERL and ERM.

引用

页码：99 / 107

页数：8

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