Concentrations of polycyclic aromatic hydrocarbon in the surface sediments from inter-tidal areas of Kenting coast,Taiwan |
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| Authors: | Jing-O Cheng Fung-Chi Ko Jan-Jung Li Te-Hao Chen Ying-Ming Cheng Chon-Lin Lee |
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| Institution: | (1) National Museum of Marine Biology and Aquarium, Pingtung, Taiwan;(2) Department of Marine Environment and Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan;(3) Institute of Marine Biodiversity and Evolutionary Biology, National Dong-Hwa University, Pingtung, Taiwan;(4) National Museum of Marine Biology and Aquarium, Institute of Marine Biodiversity and Evolutionary Biology, National Dong-Hwa University, 2, Hauwan Road, Chuchung, Pingtung, Taiwan; |
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| Abstract: | The main objective of this study was to investigate the concentrations of polycyclic aromatic hydrocarbons (PAHs) in inter-tidal
sediments of the Kenting coast, Taiwan, to assess the levels and origin of PAHs, and to provide useful information on the
potential ecological risk of PAHs to benthic organisms. The total concentrations of 38 PAHs ranged from 0.2 to 493 ng/g dry
weight. The high variation in total PAH concentrations was caused by the sand content of the sediment in the area. Compared
with other coasts and bays in the world, the concentrations of PAHs in the inter-tidal surface sediment of the Kenting coast
is low to moderate. Based on the sediment quality guidelines, the total PAH concentrations were below the effects range low
value, indicating that the PAH levels in the Kenting area were within minimal effects ranges for benthic organisms. Principal
component analysis and isomer ratios were analyzed to identify the contamination source in the inter-tidal surface sediment
of the Kenting coast. The results of compounds’ pattern and origin analysis suggest that the source of PAHs in the inter-tidal
surface sediment of the Kenting coast is the combustion of petroleum and biomass. |
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