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Article
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Tier 2
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Original research — experimental, observational, or case-control study. Direct primary evidence.
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Microplastic Pollution in Pavement Sediments of Beijing: Abundance, Characteristics, and Ecological Risk
Toxics
2026
Summary
Researchers surveyed microplastic pollution in pavement sediments across Beijing and identified 28 sampling sites with distinct spatial risk patterns — five low-risk, eight medium-risk, and fifteen high-risk — providing the first quantitative ecological risk map of road-surface microplastic contamination in the city.
) method showed clearer differentiation of spatial risk patterns in the Beijing study area, with 5 low-risk sites, 8 medium-risk sites and 15 high-risk sites among the sampling sites.