摘要

作为中国南水北调工程的水源，丹江口水库（DJKR）的水质与数十亿居民的饮用水安全有关。 因此，在该研究中研究了DJKR的地表水和沉积物样品中的微塑料。 在所有水和沉积物样品中观察到微塑料，其丰度分别为467至15,017n / m 3和15至40n / kg湿重。 微塑料颜色丰富，主要是纤维状物品。 与其他尺寸相比，更容易观察到小尺寸颗粒（<2 mm）。 通过微拉曼光谱分析表明聚丙烯是主要的聚合物类型。 这些系统的结果表明，DJKR正受到微塑料的污染，应该更加关注它对水生生物和受饮用水源污染影响的居民的潜在威胁。

As the source of water for the South-to-North Water Diversion Project of China, the water quality of the Danjiangkou Reservoir (DJKR) is related to the safety of drinking water for billions of residents. Consequently, microplastics in surface water and sediment samples of the DJKR were investigated in this study. Microplastics were observed in all water and sediment samples with abundances varying from 467 to 15,017 n/m3 and 15 to 40 n/kg wet weight, respectively. Microplastics were rich in colour and dominated by fibrous items. Small-sized particles (< 2 mm) were more frequently observed than other sizes. Analysis by micro-Raman spectroscopy showed that polypropylene was the major polymer type. These systematic results demonstrated that the DJKR is suffering from the pollution of microplastics, which should be paid more attention based on its potential threat to the aquatic organisms and residents impacted by the drinking water source pollution.

https://www.ncbi.nlm.nih.gov/pubmed/30580204