Yu Xubiao, Peng Jinping, Wang Jundong, Wang Kan, Bao Shaowu
Faculty of Architectural, Civil Engineering & Environment, Ningbo University, Ningbo, 315211, PR China.
Faculty of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China.
Environ Pollut. 2016 Jul;214:722-730. doi: 10.1016/j.envpol.2016.04.080. Epub 2016 May 2.
The occurrence of microplastics in the beach sand of the Bohai Sea was investigated for the first time. The Bohai Sea is the largest Chinese inner sea and its coastal region is one of the most densely urbanized and industrialized zones of China. Samples from three costal sites (i.e., Bijianshan, Xingcheng and Dongdaihe) were collected, quantified and identified for microplastic analysis. Effects of sample depth and tourism activity were investigated. Surface samples (2 cm) contained higher microplastic concentrations than deep samples (20 cm). Samples from the bathing beach exhibited higher microplastic concentrations than the non-bathing beach, suggesting the direct contribution of microplastics from tourism activity. Of eight types of microplastics that were found, PEVA (polyethylene vinyl acetate), LDPE (light density polyethylene) and PS (polystyrene) were the largest in abundances. Moreover, the non-plastic items from samples were analyzed and results revealed that the majority abundance of the observed non-plastics were viscose cellulose fibers. Further studies are required to evaluate the environmental hazards of microplastics, especially as they may "act as a contaminant transporter" to the Bohai Sea ecosystem.
首次对渤海海滩沙中的微塑料进行了调查。渤海是中国最大的内海，其沿海地区是中国城市化和工业化最密集的区域之一。采集了来自三个沿海地点（即笔架山、兴城和北戴河）的样本，对微塑料进行了定量和鉴定分析。研究了样本深度和旅游活动的影响。表层样本（2厘米）的微塑料浓度高于深层样本（20厘米）。来自浴场海滩的样本微塑料浓度高于非浴场海滩，这表明旅游活动是微塑料的直接来源。在所发现的八种微塑料类型中，聚乙烯醋酸乙烯酯（PEVA）、低密度聚乙烯（LDPE）和聚苯乙烯（PS）的含量最高。此外，对样本中的非塑料物品进行了分析，结果显示观察到的非塑料中大多数是粘胶纤维素纤维。需要进一步研究来评估微塑料对环境的危害，特别是因为它们可能会作为“污染物载体”对渤海生态系统产生影响。
