The effects of flow rate and temperature on SPMD measurements of bioavailable PAHs in seawater

MARINE POLLUTION BULLETIN

卷:97

Article

Chang, Wan-Ting¹  Lee, Chon-Lin^1,2,3,4  Brimblecombe, Peter⁵  Fang, Meng-Der⁶  Chang, Kuo-Tung⁷  Liu, James T.⁸ 

[1] Natl Sun Yat Sen Univ, Dept Marine Environm & Engn, Kaohsiung 80424, Taiwan

[2] Kaohsiung Med Univ, Coll Hlth Sci, Dept Publ Hlth, Kaohsiung, Taiwan

[3] Natl Sun Yat Sen Univ, Asia Pacific Ocean Res Ctr, Kuroshio Res Grp, Kaohsiung 80424, Taiwan

[4] Kaohsiung Med Univ, Res Ctr Environm Med, Kaohsiung, Taiwan

[5] City Univ Hong Kong, Sch Energy & Environm, Kowloon, Hong Kong, Peoples R China

[6] Ind Technol Res Inst, Green Energy & Environm Res Labs, Hsinchu 30011, Taiwan

[7] Natl Kaohsiung Marine Univ, Dept Marine Environm Engn, Kaohsiung, Taiwan

[8] Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 80424, Taiwan

关键词: SPMD;    Sampling rate;    Taiwan Strait;    Bioavailability;   

DOI  :  10.1016/j.marpolbul.2015.06.013

来源: Elsevier

【 摘 要 】

This work investigates the dependence of the sampling rate (R-s) of semi-permeable membrane devices (SPMDs) on flow rate and temperature. The in situ R-s values were obtained using performance reference compounds (PRCs) with weighted polynomial regression and used to estimate the bioavailable polycyclic aromatic hydrocarbon (PAH) concentrations in seawater. The in situ R-s values did not vary with flow rate and temperature. The empirical equation of the R-s value from the SPMDs was established. This infers that PRCs could be avoided by using an established empirical equation under similar field conditions. The sum of the bioavailable PAHs ranged from 0.281 to 0.611 ng L-1 on the eastern side of the Taiwan Strait and from 0.438 to 1.10 ng L-1 on the western side. Distinct sources and toxicity of these bioavailable PAHs were observed and mainly resulted from different types of energy consumption. (C) 2015 Elsevier Ltd. All rights reserved.

【 授权许可】

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