General trends of atmospheric mercury concentrations in urban and rural areas in Korea and characteristics of high-concentration events

Han, Young J.; Kim, Jung-Eun; Kim, Pyung-Rae; Kim, Woo Jin; Yi, Seung‐Muk; Seo, Yong-Seok; Kim, Seung-Hee

doi:10.1016/j.atmosenv.2014.06.002

Cited by 53 publications

(24 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…GEM = gaseous elemental mercury; GOM = gaseous oxidized mercury; PBM = particulate bound mercury. Chen et al, 2016;Ci et al, 2015;Ci, Zhang, & Wang, 2011, Ci et al, 2012Ci, Zhang, Wang, & Niu, 2011aFriedli et al, 2011;Fu, Feng, Dong, et al, 2010;Fu, Feng, Liang, et al, 2012;Fu, Feng, Shang, et al, 2012;Fu et al, 2011;Fu, Feng, Sommar, et al, 2012;Fu, Zhu, et al, 2016;Fu, Zhang, Yu, et al, 2015;Y.-J. Han et al, 2014;Hong et al, 2016;Huang et al, 2013Huang et al, , 2015Lee et al, 2016;Ma et al, 2016;Sheu & Lin, 2011Sheu et al, , 2010Song et al, 2015;Tang et al, 2018; Y. M. Wang, Peng, et al, 2014;Weiss-Penzias et al, 2015;Xu et al, 2013Xu et al, , 2015.…”

Section: Evaluation Of Model Performance Using Base-case Simulation Rmentioning

confidence: 99%

Assessment of Regional Mercury Deposition and Emission Outflow in Mainland China

et al. 2018

View full text Add to dashboard Cite

Mainland China is the largest emission region of anthropogenic mercury (Hg) in the world. There have been concerns regarding the emission outflow and chemical transport budget of Hg in the region. Earlier assessments of Hg chemical transport were based on relatively outdated emission data. Recent estimates for anthropogenic (Wu et al., 2016, https://doi.org/10.1021/acs.est.6b04308) and natural Hg emissions (X. Wang, Lin, et al., 2016, https://doi.org/10.5194/acp-16-11125-2016) show substantial differences from earlier emission inventories. In this study, we applied the updated Hg emission estimates to reassess the regional transport budget using Community Multiscale Air Quality‐Hg v5.1. Our results show that the variation of simulated concentration, deposition, and associated emission outflow of Hg are primarily influenced by the spatial‐temporal variation of Hg emissions, monsoon shifts, and particulate matter pollution in China. Total Hg deposition in Mainland China is estimated to be 422 Mg/year, and approximately two thirds of the deposition is contributed by domestic emissions. The net Hg transport budget from Mainland China is 511 Mg/year, contributing to 10% of Hg deposition in other regions of the world. This reassessment points to a ~25% reduction in total annual outflow compared to the previous estimate by Lin et al. (2010, https://doi.org/10.5194/acp-10-1853-2010). Such reduction is mainly caused by changes in Hg emission quantity, speciation, and spatial/temporal distributions. More modeling studies focusing on reducing uncertainties of emission inventories and Hg atmospheric chemistry are needed for continuous assessment of Hg emission outflow in this emission‐intensive region.

show abstract

Section: Evaluation Of Model Performance Using Base-case Simulation Rmentioning

confidence: 99%

Assessment of Regional Mercury Deposition and Emission Outflow in Mainland China

et al. 2018

View full text Add to dashboard Cite

show abstract

“…There is a possibility that some GOM may be absorbed in the line upstream of the gold traps although the sampling line and inlet were maintained at 50 • C to prevent the GOM sorption. However, it is typically assumed that Tekran 2537 can collect and analyze TGM in most of the studies (Temme et al, 2002;Gustin et al, 2013;Han et al, 2014;Zhang et al, 2015). The Tekran 2537B was automatically calibrated daily using an internal permeation source.…”

Section: Sampling and Analysismentioning

confidence: 99%

“…The TGM concentration varied diurnally, generally showing morning maximums (07 a.m.-12:00 a.m.) and minimums during the nighttime. In urban areas, TGM concentrations are typically higher during the nighttime due to a combination of decreased GEM loss by daytime oxidation, increased use of household heating systems and decreased mixing heights at night Han et al, 2014). In contrast, daytime peaks have been observed in rural and remote areas, likely due to increased volatilization of Hg 0 from natural sources (Choi et al, 2008;.…”

Section: General Trends Of Three Hg Speciesmentioning

confidence: 99%

Atmospheric speciated mercury concentrations on an island between China and Korea: sources and transport pathways

et al. 2016

Self Cite

View full text Add to dashboard Cite

Abstract. As a global pollutant, mercury (Hg) is of particular concern in East Asia, where anthropogenic emissions are the largest. In this study, speciated Hg concentrations were measured on Yongheung Island, the westernmost island in Korea, located between China and the Korean mainland to identify the importance of local and regional Hg sources. Various tools including correlations with other pollutants, conditional probability function, and back-trajectory-based analysis consistently indicated that Korean sources were important for gaseous oxidized mercury (GOM) whereas, for total gaseous mercury (TGM) and particulate bound mercury (PBM), regional transport was also important. A trajectory cluster based approach, considering both Hg concentration and the fraction of time each cluster was impacting the site, was developed to quantify the effect of Korean sources and out-of-Korean sources. This analysis suggests that contributions from out-of-Korean sources were similar to Korean sources for TGM whereas Korean sources contributed slightly more to the concentration variations of GOM and PBM compared to out-of-Korean sources. The ratio of GOM/PBM decreased when the site was impacted by regional transport, suggesting that this ratio may be a useful tool for identifying the relative significance of local sources vs. regional transport. The secondary formation of PBM through gas-particle partitioning with GOM was found to be important at low temperatures and high relative humidity.

show abstract

“…It is timely therefore that this paper reviews the results of this measurement campaign over the last ten years, which represents the first UK assessment of total gaseous mercury concentrations in urban and industrial locations, and provides critical analysis of the concentrations and trends observed over this decade of measurement. Similar studies have been made at urban and background locations in other territories (Cole et al, 2014;Han et al, 2014;Parsons et al, 2013;Ebinghaus et al, 2011;Cole et al, 2013;Slemr et al, 2010;Cole and Steffen, 2010), and recently summarised (Pirrone et al, 2013;Tørseth et al, 2012). Similarly, a study of mercury concentrations at rural UK stations has been made previously (Kentisbeer et al, 2011), but no nationwide study of mercury in urban UK locations has been performed previously.…”

Section: Introductionmentioning

confidence: 74%

Ten years of mercury measurement at urban and industrial air quality monitoring stations in the UK

Brown

Goddard

Butterfield

et al. 2015

Atmospheric Environment

View full text Add to dashboard Cite

General trends of atmospheric mercury concentrations in urban and rural areas in Korea and characteristics of high-concentration events

Cited by 53 publications

References 50 publications

Assessment of Regional Mercury Deposition and Emission Outflow in Mainland China

Assessment of Regional Mercury Deposition and Emission Outflow in Mainland China

Atmospheric speciated mercury concentrations on an island between China and Korea: sources and transport pathways

Ten years of mercury measurement at urban and industrial air quality monitoring stations in the UK

Contact Info

Product

Resources

About