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Distributions, composition patterns, sources and potential toxicity of polycyclic aromatic hydrocarbons (PAHs) pollution in surface sediments from the Kim Kim River and Segget River, Peninsula Malaysia


Citation

Keshavarzifard, Mehrzad and Zakaria, Mohamad Pauzi and Keshavarzifard, Shahin and Sharifi, Reza (2018) Distributions, composition patterns, sources and potential toxicity of polycyclic aromatic hydrocarbons (PAHs) pollution in surface sediments from the Kim Kim River and Segget River, Peninsula Malaysia. Pertanika Journal of Science & Technology, 26 (1). pp. 95-120. ISSN 0128-7680; ESSN: 2231-8526

Abstract / Synopsis

This study investigated distributions, composition patterns, sources and potential toxicity of polycyclic aromatic hydrocarbon (PAHs) pollution in surface sediments from the Kim Kim River and Segget River, Peninsular Malaysia. The samples were extracted using Soxhlet extraction, purified using two-step silica gel column chromatography and then analysed by gas chromatography mass spectrometry (GC-MS). The total PAH concentrations ranged from 95.17 to 361.24 ng g-1 dry weight (dw) and 330.09 to 552.76 ng g-1 dw in surface sediments from the Kim Kim and Segget Rivers, respectively. Source type identification using PAH molecular indices and hierarchical cluster analysis (HCA) indicated that PAHs were mostly of pyrogenic origin, while in some stations petrogenic sources had a significant portion. A PAH toxicity assessment using sediment quality guidelines (SQGs), mean effect range-median quotient (M-ERM-Q), benzo[a]pyrene (BaP) equivalent concentration and BaP toxicity equivalent quotient (TEQcarc) indicated low probability of toxicity for both the Kim Kim and Segget Rivers. Moreover, the human health risk assessment applying Cancer Riskingestion and Cancer Riskdermal indicated that probabilistic health risk to humans via ingestion and dermal pathways from sediments of the Kim Kim and Segget Rivers can be categorised as low-to-moderate risk.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Environmental Studies
Publisher: Universiti Putra Malaysia Press
Keywords: Kim Kim River; Segget River; Malaysia; Pollution sources; Polycyclic aromatic hydrocarbons (PAHs); Sediment; Ecological risk assessment; Human health risk assessment
Depositing User: Nabilah Mustapa
Date Deposited: 12 Mar 2018 11:43
Last Modified: 12 Mar 2018 11:43
URI: http://psasir.upm.edu.my/id/eprint/59593
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