School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao Plateau, Taleigao, 403206, Goa, India.
Department of Geology, Government College of Arts, Science and Commerce, Sanquelim, 403505, Goa, India.
Environ Monit Assess. 2024 Apr 2;196(5):409. doi: 10.1007/s10661-024-12587-1.
The amount of information available on the microplastic (MP) contamination in Goa's riverine water systems is currently limited. The abundance, size, colour, and polymer composition of microplastics in Chapora River surface water were investigated in this study. MPs in Chapora River surface water ranged from 0.1 particles/L (station 13) to 0.47 particles/L (station 5). The mean (± standard deviation) MP concentration was 0.25 (± 0.13) particles/L. Fibre was the dominant shape (77.15%), followed by fragments (12.36%), films (9.36%), and foam (1.12%). Most MPs were found in the 0.1-0.3 mm size range, then in the 0.3-1 mm and 1-5 mm. The dominant type of polymer studied was polyethylene terephthalate (PET; 46%), followed by high-density polyethylene (HDPE; 14%), polypropylene (PP; 5%), and polystyrene (PS; 1%). The risk assessment study indicated high risk with respect to PHI, while PLI shows low risk in the area. The source of MPs was mostly anthropogenic in nature in the region. When compared with other tropical rivers, MP pollution was relatively lower in the Chapora River. Nevertheless, the baseline data will help the local administration take mitigation measures to reduce the impact of MP pollution in the region.
目前，关于果阿河流水体中微塑料（MP）污染的信息量有限。本研究调查了查波拉河地表水微塑料的丰度、大小、颜色和聚合物组成。查波拉河地表水的 MPs 从 0.1 个/升（站 13）到 0.47 个/升（站 5）不等。MP 浓度的平均值（±标准偏差）为 0.25（±0.13）个/升。纤维是主要形状（77.15%），其次是碎片（12.36%）、薄膜（9.36%）和泡沫（1.12%）。大多数 MPs 发现于 0.1-0.3mm 大小范围，然后是 0.3-1mm 和 1-5mm。研究中主要的聚合物类型是聚对苯二甲酸乙二醇酯（PET；46%），其次是高密度聚乙烯（HDPE；14%）、聚丙烯（PP；5%）和聚苯乙烯（PS；1%）。风险评估研究表明，该地区 PHI 方面存在高风险，而 PLI 则显示低风险。该地区 MPs 的来源主要是人为的。与其他热带河流相比，查波拉河的 MP 污染相对较低。尽管如此，基准数据将帮助当地行政部门采取缓解措施，以减少该地区 MP 污染的影响。
