School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China.
School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China.
Environ Pollut. 2018 Oct;241:834-840. doi: 10.1016/j.envpol.2018.06.012. Epub 2018 Jun 7.
Microplastics (MPs) sized between 0.33 and 5 mm were collected using Manta trawls from ten surface seawater sites in Bohai and Huanghai Seas, China. A total of 1024 (Bohai Sea) and 132 (Huanghai Sea) microplastic pieces were classified, including polystyrene foams, polyethylene films and lines, and other plastic pellets, with concentrations of MPs ranging from 3 to 162 particles per 100 m (0.012-2.96 mg m). A pretreatment of MPs with 30% HO in water did not significantly lower polycyclic aromatic hydrocarbon (PAH) concentrations on MPs compared to no HO pretreatment. Measurements of PAHs carried on the collected MPs indicated that the concentrations of the sum of 16 PAHs were in the range of 3400-119,000 ng g. The sources of PAHs in Bohai and Huanghai Seas were highly similar, with petroleum and gasoline probably as the dominant sources. The present study shows the relative importance of MPs in regards to chemical transport in the marine environment. The combination of high concentrations of PAHs affiliated with MPs and the increasing magnitude of plastic pollution in the world's oceans demonstrates the considerable importance of MPs to the fate of PAHs in marine environments.
采用 Manta 拖网从中国渤海和黄海的 10 个表层海水站位采集了粒径在 0.33 到 5mm 之间的微塑料（MPs）。共分类出 1024 个（渤海）和 132 个（黄海）微塑料颗粒，包括聚苯乙烯泡沫、聚乙烯薄膜和线以及其他塑料颗粒，MPs 的浓度范围为每 100m 有 3 到 162 个颗粒（0.012-2.96mg/m³）。与未经 HO 预处理相比，用 30%HO 对 MPs 进行的预处理并没有显著降低多环芳烃（PAH）在 MPs 上的浓度。对收集到的 MPs 上携带的 PAHs 的测量表明，16 种 PAHs 总和的浓度范围在 3400-119000ng/g。渤海和黄海 PAHs 的来源高度相似，石油和汽油可能是主要来源。本研究表明了 MPs 在海洋环境中化学输运方面的相对重要性。与 MPs 相关的高浓度 PAHs 以及世界海洋中塑料污染程度的不断增加，表明 MPs 对海洋环境中 PAHs 的命运具有相当重要的意义。
