TY - JOUR
T1 - Multiple evaluation of the potential toxic effects of sediments and biota collected from an oil-polluted area around Abu Ali Island, Saudi Arabia, Arabian Gulf
AU - Lee, Junghyun
AU - Kim, Taewoo
AU - Yoon, Seo Joon
AU - Kim, Seonju
AU - Lee, Aslan Hwanhwi
AU - Kwon, Bong Oh
AU - Allam, Ahmed A.
AU - Al-khedhairy, Abdulaziz A.
AU - Lee, Hanbyul
AU - Kim, Jae Jin
AU - Hong, Seongjin
AU - Khim, Jong Seong
N1 - Funding Information:
This work was supported by the project entitled “Quantification of self-purification capacity of coastal wetlands through understanding of chemodynamics of land-driven coastal pollutants (NRF-2017R1E1A1A01075067)” funded by the Ministry of Science and ICT . This work was also supported by the projects entitled “Development of techniques for assessment and management of hazardous chemicals in the marine environment (2014-0342) funded by the Ministry of Oceans and Fisheries of Korea ”. Authors also would like to thank Twasol Research Excellence Program (TRE Program) at King Saud University, Riyadh, Saudi Arabia, for support.
Publisher Copyright:
© 2019 Elsevier Inc.
PY - 2019/11/15
Y1 - 2019/11/15
N2 - After the Gulf War Oil Spill, there have been many investigations about distributions of oil-derived pollutants nearby areas, but lacking in ecotoxicological assessment. We evaluated the potential toxicity of asphalt mats, sediments, and biota (polychaetes, chitons, snapping shrimps, and crabs) by combining two bioassays (H4IIE-luc and Vibrio fischeri) and in situ microbial community (eDNA). Samples were collected from Abu Ali Island, and organic extracts were bioassayed and further fractionated according to the chemical polarity using silica gel column. Great aryl hydrocarbon receptor (AhR)-mediated potencies and inhibition of bioluminescence were mainly found in aromatics (F2) and saturates (F1) fractions of asphalt mat and sediments, respectively, while great toxicological responses in biota samples were found in resins and polar (F3) fraction. We also confirmed that potential toxicities of biota were species-specific; great AhR-mediated potencies were found in polychaetes and great bioluminescence inhibitions were found in crabs. In microbial communities, most genera (up to 90%) were associated with polycyclic aromatic hydrocarbons (PAHs)-degrading bacteria, supporting that PAHs are the primary stressors of the benthic community around Abu Ali Island. The present study provides useful information on the contamination status, risk assessment of environmental matrices and benthic organisms in Abu Ali Island.
AB - After the Gulf War Oil Spill, there have been many investigations about distributions of oil-derived pollutants nearby areas, but lacking in ecotoxicological assessment. We evaluated the potential toxicity of asphalt mats, sediments, and biota (polychaetes, chitons, snapping shrimps, and crabs) by combining two bioassays (H4IIE-luc and Vibrio fischeri) and in situ microbial community (eDNA). Samples were collected from Abu Ali Island, and organic extracts were bioassayed and further fractionated according to the chemical polarity using silica gel column. Great aryl hydrocarbon receptor (AhR)-mediated potencies and inhibition of bioluminescence were mainly found in aromatics (F2) and saturates (F1) fractions of asphalt mat and sediments, respectively, while great toxicological responses in biota samples were found in resins and polar (F3) fraction. We also confirmed that potential toxicities of biota were species-specific; great AhR-mediated potencies were found in polychaetes and great bioluminescence inhibitions were found in crabs. In microbial communities, most genera (up to 90%) were associated with polycyclic aromatic hydrocarbons (PAHs)-degrading bacteria, supporting that PAHs are the primary stressors of the benthic community around Abu Ali Island. The present study provides useful information on the contamination status, risk assessment of environmental matrices and benthic organisms in Abu Ali Island.
KW - AhR-mediated potency
KW - Effect-directed analysis
KW - Luminescence inhibition
KW - Microbial community
KW - Next generation sequencing
KW - Sediments
UR - http://www.scopus.com/inward/record.url?scp=85070280971&partnerID=8YFLogxK
U2 - 10.1016/j.ecoenv.2019.109547
DO - 10.1016/j.ecoenv.2019.109547
M3 - Article
C2 - 31408817
AN - SCOPUS:85070280971
SN - 0147-6513
VL - 183
JO - Ecotoxicology and Environmental Safety
JF - Ecotoxicology and Environmental Safety
M1 - 109547
ER -
