https://scholars.lib.ntu.edu.tw/handle/123456789/542566
標題: | Microplastic pollution of the Tamsui River and its tributaries in northern Taiwan: Spatial heterogeneity and correlation with precipitation | 作者: | Wong, G. Löwemark, L. LUDVIG LOWEMARK |
公開日期: | 2020 | 卷: | 260 | 起(迄)頁: | - | 來源出版物: | Environmental Pollution | 摘要: | The microplastic pollution and its effects on ecosystem in the marine environment has been well studied over the past decade. In contrast, the impact of microplastic pollution in freshwater environments was understudied, e.g., only a few studies examined the amount and distribution of microplastic in rivers, as well as the contribution of rivers to the microplastic pollution in oceans. In this study we investigated the microplastic pollution in the Tamsui River and its tributaries in northern Taiwan. We collected samples with a manta net from the Tamsui River, the Dahan River, the Keelung River and the Xindian River every two weeks over a time period of three months in 2018. Additionally, we took samples from the Xindian River during a heavy rain event in February 2019. Microplastic particles in the size range of 0.3–5 mm were visually identified. Unknown particles were identified using FTIR spectroscopy. The extracted particles were counted and classified according to their shape and color. We found microplastic of varying amounts in each of the samples, which indicates a wide spread pollution in the Tamsui River and its tributaries. The amount varies between rivers and ranges in average from 2.5 ± 1.8 particles per m3 in the Xindian River to 83.7 ± 70.8 particles per m3 in the Dahan River. Our data shows a positive correlation between precipitation and amount of microplastic particles found in the rivers. Moreover, in each river we could observe a large spatial and temporal variation of the microplastic amount between the left, middle and right sections of the stream. Due to this heterogeneous distribution of particles, we suggest that samples for microplastic analysis should be taken from multiple places across a river, as well as over a certain period to account for the heterogeneous microplastic distribution in the river water. © 2020 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85078282931&partnerID=40&md5=96b48e72cda82fb2cec08bb960ae982e https://scholars.lib.ntu.edu.tw/handle/123456789/542566 |
DOI: | 10.1016/j.envpol.2020.113935 | SDG/關鍵字: | Fourier transform infrared spectroscopy; Marine pollution; Microplastic; Particle size analysis; Pollution; Rivers; Freshwater environments; Heterogeneous distributions; Marine environment; Microplastic particles; Positive correlations; Spatial and temporal variation; Spatial heterogeneity; Taiwan; River pollution; correlation; heterogeneity; plastic waste; precipitation (climatology); river pollution; spatial analysis; tributary; water quality; Article; ecosystem; environmental impact; Fourier transform infrared spectroscopy; geographic distribution; microplastic pollution; particle size; precipitation; river; Taiwan; chemistry; environmental monitoring; water pollutant; Taiwan; Tamsui River; Manta; rain; Ecosystem; Environmental Monitoring; Microplastics; Rain; Rivers; Taiwan; Water Pollutants, Chemical |
顯示於: | 地質科學系 |
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