Distribution and Possible Impacts of Toxic Organic Pollutants on Coral Reef Ecosystems around Okinawa Island, Japan.

dc.contributor.author Imo, S.T. en_US
dc.contributor.author Sheikh, M.A. en_US
dc.contributor.author Sawano, K. en_US
dc.contributor.author Fujimura, H. en_US
dc.contributor.author Oomori, T. en_US
dc.date.accessioned 2012-05-26T01:05:00Z
dc.date.available 2012-05-26T01:05:00Z
dc.date.issued 2008-07 en_US
dc.description v. ill. 23 cm. en_US
dc.description Quarterly en_US
dc.description.abstract Organic pollutants have detrimental effects on the environment. In this study we evaluated the current status of contamination with organochlorine pesticides (OCPs), organo-tin compounds (OTCs), and polychlorinated biphenyls (PCBs) in the waters in and around Okinawa Island, Japan. Possible toxicological effects of these pollutants on marine life including corals are also discussed. Concentrations of total OCPs in river water were in the range of 1.02–56.4 ng liter_1. Among the OCPs, a-BHC, b-BHC, and aldrin were common in river water. OTCs detected in 30 samples of seawater were (meanGSD) monobutyl tin (MBT), 0.44G0.75 ng (Sn) liter_1; dibutyl tin (DBT), 1.32G2.70 ng (Sn) liter_1; tributyl tin (TBT), 0.72G2.90 ng (Sn) liter_1; monophenyl tin (MPhT), 0.04G0.42 ng (Sn) liter_1; diphenyl tin (DPhT), 0.007 ng (Sn) liter_1; and triphenyl tin (TPhT), 0.013 ng (Sn) liter_1. Highest concentrations of TBT, 28.5 ng (Sn) liter_1 for water and 172 ng (Sn) g_1 dry weight for sediment, were detected in samples from Itoman Port. Concentrations of total PCBs were 0.05–0.28 ng liter_1 in open ocean and from 1.59 to 2.48 ng liter_1 in coastal waters. Overall, this study shows that the coral reef ecosystems and their adjacent environments around Okinawa Island are contaminated by toxic organic contaminants (OCPs, OTCs, and PCBs). Levels of these contaminants detected in some sites have exceeded the Environmental Quality Target (EQT), which may pose a risk to health of marine life. en_US
dc.format.extent 10 p. en_US
dc.identifier.citation Imo ST, Sheikh MA, Sawano K, Fujimura H, Oomori T. Distribution and Possible Impacts of Toxic Organic Pollutants on Coral Reef Ecosystems around Okinawa Island, Japan. Pac Sci 62(3): 317-326. en_US
dc.identifier.issn 0030-8870 en_US
dc.identifier.uri http://hdl.handle.net/10125/22708
dc.language.iso en-US en_US
dc.publisher Honolulu, University of Hawaii Press en_US
dc.relation.ispartofseries vol. 62, no. 3 en_US
dc.subject.lcsh Natural history--Periodicals. en_US
dc.subject.lcsh Science--Periodicals en_US
dc.subject.lcsh Natural history--Pacific Area--Periodicals. en_US
dc.title Distribution and Possible Impacts of Toxic Organic Pollutants on Coral Reef Ecosystems around Okinawa Island, Japan. en_US
dc.type Article en_US
dc.type.dcmi Text en_US
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