Health risk assessment of polycyclic aromatic hydrocarbons in coastal soils of Koh Samed Island (Thailand) after the oil spill incident in 2013

被引：24
作者：
Apiratikul, Ronbanchob [1 ]
Pongpiachan, Siwatt [2 ]
Hashmi, Muhammad Zaffar [3 ]
机构：
[1] Suan Sunandha Rajabhat Univ, Dept Environm Sci, Bangkok, Thailand
[2] NIDA, Sch Social & Environm Dev, Bangkok, Thailand
[3] COMSATS Univ, Dept Chem, Pk Rd, Islamabad 44000, Pakistan
来源：
MARINE POLLUTION BULLETIN | 2020年 / 150卷
关键词：
PAHs; Human health risk assessment; Koh Samed Island; Oil spill; LONG-RANGE TRANSPORT; SURFACE SEDIMENTS; PAHS;
D O I：
10.1016/j.marpolbul.2019.110736
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Health risks of human exposures to 12 Polycyclic aromatic hydrocarbons (PAHs) in coastal soils of Koh Samed Island (KSI), Thailand, were evaluated after the coastal areas were cleaned up of the 2013 oil-spill contamination. The risk assessment quantified both total cancer and non-cancer risks for four groups of receptors using average PAHs concentrations. Two exposure pathways (incidental ingestion and dermal contact) were selected to evaluate the risks, and three methods were used to calculate the total cancer risks to determine an appropriate assessment method. The non-cancer risk was represented by the total Hazard Index (HI). The contributions of each PAH to the total cancer risk and total HI were also investigated. The total cancer risk (3.53x 10(-10) to 9.12x 10(-8)) and total HI (4.35x 10(-6 to 2.13 x 10-3)) from this work were relatively lower than the USEPA baselines (10(-6) for the cancer risk and 1 for the HI) and were quite low when compared with other works in the literature. Benzo(a)pyrene made the highest contribution to the total cancer risk (61.82%), while benzo[g,h,i]perylene made the highest contribution to the total HI (62.41%). In regard to the contributions of the two exposure routes, dermal contact contributed the most to the total cancer risk, while incidental ingestion contributed the most to the total HI.
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页数：8
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