Hygroscopic and Chemical Properties of Aerosol Emissions at a Major Mining Facility in Iran: Implications for Respiratory Deposition.

ABSTRACT: This study characterizes the hygroscopic and chemical nature of aerosols originating from ten locations (4 outdoors and 6 indoors) around the Gol-E-Gohar (GEG) iron ore mine (Iran), including an assessment of how hygroscopic growth alters particulate deposition in the respiratory system. Aerosols collected on filters in three diameter (D_p) ranges (total suspended particulates [TSP], D_p ≤ 10 μm [PM₁₀], and D_p ≤ 2.5 μm [PM_2.5]) were analyzed for chemical and hygroscopic characteristics. The water-soluble aerosol composition is dominated by species associated with directly emitted crustal matter such as chloride, sodium, calcium, and sulfate. There was minimal contribution from organic acids and other secondarily formed species such as in

SUBMITTER: Cuevas-Robles A 

PROVIDER: S-EPMC8117051 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature