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Bioaccessibility and source-specific health risk of heavy metals in PM2.5 in a coastal city in China

Based on the combined positive matrix factorization-health risk (PMF-HR) model, industry, combustion, and traffic emission contributed the most to the health risk of Cr and Cd, followed by soil parent material layer. Our study provided a reliable method to calculate the bioaccessible heavy metal health risk and determine each potential source’s contribution to health risk. |