Temporal variation and potential origins of atmospheric speciated mercury at a remote island in South China Sea based on two-year field measurement data.

ABSTRACT: This study explored the temporal variation, gas-particle partition, and potential origins of atmospheric speciated mercury at a remote island in the South China Sea. Two-year data of three mercury species was measured at the Taiping Island. Air masses were clustered into five transport routes (A-E) to resolve the potential origins of atmospheric mercury. Field measurement showed that the concentration of gaseous elemental mercury (GEM) (1.33 ± 0.52 ng/m³) was close to the GEM background level of Northern Hemisphere, while those of GOM and PHg were 13.39 ± 3.58 and 94.33 ± 30.25 pg/m³, respectively. Both regular and intensive samplings concluded a consistent trend of higher mercury level in winter and spring than that in summer and fall. GEM dominated atmospheric mercu

SUBMITTER: Yeh MJ 

PROVIDER: S-EPMC7952567 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature