Marine Environmental Impact Assessment Center, National Institute of Fisheries Science, Busan 46083, Republic of Korea.
Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea.
Mar Pollut Bull. 2022 Dec;185(Pt A):114271. doi: 10.1016/j.marpolbul.2022.114271. Epub 2022 Oct 28.
A poly(methyl methacrylate) (PMMA) passive sampler was applied to harbor sediment to examine whether the substrate could be used as a tool to measure freely dissolved concentrations of contaminants. An ex situ method required at least 1 g of PMMA to detect freely dissolved polycyclic aromatic hydrocarbons (PAHs) in sediment with <100 ng/g dry weight. Two weeks were sufficient to reach equilibrium under 180 rpm for PAHs with a molar volume of <250 cm/mol. For the in situ method, a deployment time of four months was sufficient to measure PAHs with a molar volume up to 250 cm/mol in the sediment bed. The PMMA passive sampler could be used to measure the bioavailable fraction of PAHs in porewater, reflecting the complex properties of sediment with strong sorption such as black carbons.
聚甲基丙烯酸甲酯（PMMA）被动采样器被应用于港口沉积物中，以检验这种基质是否可作为一种工具来测量污染物的自由溶解浓度。一种需要至少 1 克 PMMA 的场外方法可用于检测干重<100ng/g 的沉积物中自由溶解的多环芳烃（PAHs）。对于摩尔体积<250cm/mol 的 PAHs，在 180rpm 下 2 周即可达到平衡。对于原位方法，4 个月的部署时间足以测量摩尔体积高达 250cm/mol 的 PAHs。PMMA 被动采样器可用于测量孔隙水中 PAHs 的生物可利用部分，反映出具有强吸附性（如黑碳）的沉积物的复杂特性。
