Trans-boundary movement of mercury in the Northeast Asian region predicted by CAMQ-Hg from anthropogenic emissions distribution

Jin Ho Sung, Debananda Roy, Joo Sung Oh, Seung Ki Back, Ha Na Jang, Seong Heon Kim, Yong Chil Seo, Jeong Hun Kim, Chong Bum Lee, Young Ji Han

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The percentage contribution of trans-boundary mercury (Hg) from China at different locations in South Korea was estimated from Hg anthropogenic emission distributions using the Hg dispersion model, CMAQ-Hg. This investigation quantifies the trans-boundary Hg emissions as contribution ratios. In addition, the long-range transportation frequency is also calculated, to verify inflow cases from China. The seasonal distribution of the Hg contribution ratio was found to be highest in winter (40%), followed by fall (16%). Seasonal observations of Hg inflow frequencies were estimated as 40%, 25%, 21%, and 4% in winter, fall, summer, and spring, respectively, at the same location. Such results would be produced by the wind generally blowing from the west and north-west with a speed of 5.0 m/s and 4.5 m/s, respectively, during winter and fall, around the study area. This study made an effort to quantify the trans-boundary Hg transport and to plot Hg anthropogenic emissions distribution in the region.

Original languageEnglish
Pages (from-to)197-206
Number of pages10
JournalAtmospheric Research
Volume203
DOIs
Publication statusPublished - 2018 May 1

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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