Atmospheric mercury in a developed region of eastern China: Interannual variation and gas-particle partitioning.

ABSTRACT: Atmospheric mercury plays a crucial role in the biogeochemical cycle of mercury. This study conducted an intensive measurement of atmospheric mercury from 2015 to 2018 at a regional site in eastern China. During this period, the concentration of particle-bound mercury (PBM) decreased by 13%, which was much lower than those of gaseous elemenral mercury (GEM, 30%) and reactive gaseous mercury (GOM, 62%). The gradual decrease in the correlation between PBM and CO, K, and Pb indicates that the influence of primary emissions on PBM concentration was weakening. Moreover, the value of the partitioning coefficient (Kp) increased gradually from 0.05 ± 0.076 m³/μg in 2015 to 0.16 ± 0.37 m³/μg in 2018, indicating that GOM was increasingly inclined to adsorb onto particulate matt

SUBMITTER: Chen C 

PROVIDER: S-EPMC10522948 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature