Measuring bioavailable PAHs in estuarine water using semipermeable membrane devices with performance reference compounds

MARINE POLLUTION BULLETIN

卷:89

Article

Chang, Wan-Ting¹  Fang, Meng-Der²  Lee, Chon-Lin^1,3,4  Brimblecombe, Peter⁵ 

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

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

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

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

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

关键词: SPMD;    Membrane sampling rate;    Bioavailability;    Kaohsiung Harbor;   

DOI  :  10.1016/j.marpolbul.2014.09.031

来源: Elsevier

【 摘 要 】

Bioavailable polycyclic aromatic hydrocarbon (PAH) concentrations in the estuarine water of Kaohsiung Harbor were measured using XAD-2 resin and semipermeable membrane devices (SPMDs) calibrated with performance reference compounds (PRCs). The sum of the PAR concentrations from XAD-2 resin (C-w) in the surface and bottom water samples was 6.63 and 9.58 ng L-1, respectively. The variation in PAHs was higher in surface water. Cubic polynomial regressions using the sampling rate for five PRCs (Rs-PRC) provided estimated in situ sampling rates (R-s). The turbulent condition in the surface water was important in enhancing R-s; however, diffusion was relevant to the bottom water, which was less turbulent and showed decreasing R-s at high MW PAHs. The sum of the dissolved PAR concentrations estimated with the SPMDs (C-SPMD) was 5.87 and 9.15 ng L-1 in the surface and bottom water samples, respectively. The surface and bottom water PAHs were derived from different sources. (C) 2014 Elsevier Ltd. All rights reserved.

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