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Tier 2
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Original research — experimental, observational, or case-control study. Direct primary evidence.
Environmental Sources
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Microplastic Pollution in Surface Water of Urban Lakes in Changsha, China
International Journal of Environmental Research and Public Health2019
156 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 45
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Microplastic concentrations were measured in eight urban lakes in Changsha, China, with researchers finding widespread contamination and identifying local land use and hydrological connectivity as key factors influencing microplastic abundance.
As emerging pollutants, microplastics have attracted the attention of scholars from all over the world. However, there is a lack of research on freshwater areas, even in densely populated urban areas. This study investigated eight urban lakes in Changsha, China. It was found that microplastic concentrations ranged from 2425 ± 247.5 items/m<sup>3</sup> to 7050 ± 1060.66 items/m<sup>3</sup> in the surface water of research areas and the maximum concentration was found in Yuejin Lake, a tourist spot in the center of the city. Anthropogenic factors are an important reason for microplastic abundance in urban lakes. The major shape of microplastics was linear and most of the microplastics were transparent. More than 89.5% of the microplastics had a size of less than 2 mm. Polypropylene was the dominant type in the studied waters. This study can provide a valuable reference for a better understanding of microplastic pollution in urban areas of China.