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- W4386073073 abstract "Urban rivers are subjected to potentially toxic element pollution, which is concentrated in river sediments and poses a risk to hydrobiosis and human health. Reducing the accumulation of potentially toxic elements in sediments is a sustainable way to mitigate this risk. In this study, the field sampling of river sediments in Tongxiang, China, to characterize their eutrophication indicators and As, Cd, and Pb concentrations was conducted to assess the potential exposure risks. A combination of statistical analysis and machine learning techniques was employed to identify the drivers of potentially toxic element accumulation in the sediments. Results indicate that eutrophication is the key factor contributing to potentially toxic element accumulation in sediments. The random forest model, with R2 values of 0.434, 0.790, and 0.798 for As, Cd, and Pb, respectively, provided the best prediction of potentially toxic element concentration. TP, TOC, and TN had the most significant impact on As, Cd, and Pb accumulation in sediments, respectively. The scenario analysis revealed that a 20% and 50% decrease in the eutrophication index of sediments resulted in an average reduction of 7.50% and 7.88% in As content, 18.92% and 45.95% in Cd content, and 14.67% and 35.21% in Pb content, respectively. Our study provides valuable information for policymakers to develop strategies for preventing and controlling potentially toxic element pollution in urban areas." @default.
- W4386073073 created "2023-08-23" @default.
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- W4386073073 date "2023-08-22" @default.
- W4386073073 modified "2023-10-14" @default.
- W4386073073 title "Reducing Arsenic, Cadmium, and Lead Exposure in Urban Areas via Limiting Nutrient Discharges into Rivers" @default.
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- W4386073073 doi "https://doi.org/10.1021/acsestwater.3c00330" @default.
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