Chemical Source Profiles and Toxicity Assessment of Urban Fugitive Dust PM_2.5 in Guanzhong Plain, China.

ABSTRACT: Urban fugitive dust is a significant contributor to atmospheric PM_2.5 and a potential risk to humans. In 2019, both road dust and construction dust were collected from four cities, including Xi'an, Xianyang, Baoji, and Tongchuan, in Guanzhong Plain, China. Elements, water-soluble ions, and carbonaceous fractions were determined to establish the chemical source profile. High enrichment degrees of Se, Sc, Cl, and Zn in both road dust and construction dust indicated that the industrial system and energy consumption influenced Guanzhong Plain strongly. According to the coefficient of divergence, the two datasets within Xianyang and Tongchuan were similar. Combined with the chemical profile, road dust was affected by more stationary emission sources than construction dust in Xi'an, w

SUBMITTER: Zhao Z 

PROVIDER: S-EPMC10458601 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature