Urban stormwater microplastic size distribution and impact of subsampling on polymer diversity
Urban stormwater microplastic size distribution and impact of subsampling on polymer diversity
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DOI：
10.1039/d3em00172e
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发表时间：
2023-07-11
影响因子：
5.5
通讯作者：
Fahrenfeld, N. L.
中科院分区：
文献类型：
--
作者：
Parmar, Swaraj;Arbuckle-Keil, Georgia;Fahrenfeld, N. L.
了解不仅微塑料（MP）的浓度，但也大小分布，形态和聚合物的配置文件是可取的雨水，这是一个重要的途径进入MP到水生环境。一个挑战是，二次抽样往往需要分析环境样品和二次抽样的影响雨水MP浓度确定和聚合物类型确定的特点是不好的。为了解决这个问题，MP从城市和郊区的雨水中提取，包括从绿色基础设施中提取。傅里叶变换红外显微镜进行表征MP。此外，记录颗粒尺寸和形态。改变每个样品二次取样的63-250 μ m颗粒的数量表明，对于大多数样品，浓度的变异系数（标准偏差/平均值）为
Understanding not only microplastic (MP) concentration but also size distribution, morphology, and polymer profiles is desirable for stormwater, which is an important pathway of entry for MP into the aquatic environment. A challenge is that subsampling is often required for analysis of environmental samples and the impact of subsampling on the stormwater MP concentration determined and the polymer types identified is poorly characterized. To address this, MP were extracted from urban and suburban stormwater, including from green infrastructure. Fourier Transform Infrared microscopy was performed to characterize MP. In addition, particle dimensions and morphology were recorded. Varying the number of 63-250 & mu;m particles subsampled per sample demonstrated the coefficient of variation for concentration (standard deviation/mean) for most samples was