國家衛生研究院 NHRI:Item 3990099045/4753

NHRI > National Institute of Environmental Health Sciences > Dennis P.H. Hsieh(2004-2007) > Conference Papers/Meeting Abstract > Item 3990099045/4753

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Title:	Toxicity identification evaluation (TIE) of pore water of contaminated marine sediments collected from Hong Kong waters
Authors:	Kwok, YC;Hsieh, DPH;Wong, PK
Contributors:	Division of Environmental Health and Occupational Medicine
Abstract:	Marine sediment can function both as a source and as a sink of marine chemical contaminants. The toxicity of contaminated marine sediment can be assessed by toxic evaluation of its pore water, the inter-particle water of sediment, because toxicants in the pore water may be bioavailable to marine organisms. In this study, the toxicity identification evaluation (TIE) was performed to identify the major toxicants in the pore water of marine sediment collected in Hong Kong waters. In Phase I TIE, the suspected toxicants were characterized as anions or organic compounds that are either oxidizable or filterable in alkaline medium. In Phase 2 TIE, the suspected toxicants were identified as sulfide (S2-) based on the reduction of toxicity due to lowering of sulfide concentrations by experimental manipulations. The mass balance and spiking analyses in Phase 3 confirmed that S2- was one of the major toxicants and that some non-toxic unknown compounds measured by LC-MS, which was removed by C18 solid phase extraction, enhanced the toxicity of S2- in the pore water samples.
Date:	2005
Relation:	Marine Pollution Bulletin. 2005;51(8-12):1085-1091.
Link to:	http://dx.doi.org/10.1016/j.marpolbul.2005.06.009
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0025-326X&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000234079700055
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=27744569697
Appears in Collections:	[Dennis P.H. Hsieh(2004-2007)] Conference Papers/Meeting Abstract

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