title: Polycyclic aromatic hydrocarbons in coastal sediment of klang strait, Malaysia: distribution pattern, risk assessment and sources.
abstract: Concentration, source, and ecological risk of polycyclic aromatic hydrocarbons (PAHs) were investigated in 22 stations from surface sediments in the areas of anthropogenic pollution in the Klang Strait (Malaysia). The total PAH level in the Klang Strait sediment was 994.02±918.1 µg/kg dw. The highest concentration was observed in stations near the coastline and mouth of the Klang River. These locations were dominated by high molecular weight PAHs. The results showed both pyrogenic and petrogenic sources are main sources of PAHs. Further analyses indicated that PAHs primarily originated from pyrogenic sources (coal combustion and vehicular emissions), with significant contribution from petroleum inputs. Regarding ecological risk estimation, only station 13 was moderately polluted, the rest of the stations suffered rare or slight adverse biological effects with PAH exposure in surface sediment, suggesting that PAHs are not considered as contaminants of concern in the Klang Strait.
authors.affiliation: Institute of Biological Sciences University of Malaya, Kuala Lumpur, Malaysia; Food Science and Technology Research Institute, ACECR Mashhad Branch, Mashhad, Iran.
authors.forename: Seyedeh Belin
authors.initials: SB
authors.lastname: Tavakoly Sany
authors.affiliation: Institute of Biological Sciences University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Rosli
authors.initials: R
authors.lastname: Hashim
authors.affiliation: Institute of Biological Sciences University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Aishah
authors.initials: A
authors.lastname: Salleh
authors.affiliation: Food Science and Technology Research Institute, ACECR Mashhad Branch, Mashhad, Iran; Chemistry Department, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia.
authors.forename: Majid
authors.initials: M
authors.lastname: Rezayi
authors.affiliation: Department of Marine Science, Marine Living Group, Iranian National Institute for Oceanography, Tehran, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Mehdinia
authors.affiliation: Faculty of Natural Resources and Environment, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Omid
authors.initials: O
authors.lastname: Safari
mesh_terms: D000818:Animals; D003247:Conservation of Natural Resources; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D008296:Malaysia; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000633:toxicity; D018570:Risk Assessment; D062206:Spatial Analysis; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical
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