干旱区生态环境知识资源中心(Arid): Gaseous Oxidized mercury dry deposition measurements in the Four Corners area, USA, after large power plant mercury emission reductions

Arid

DOI	10.1016/j.apr.2020.08.030
	Gaseous Oxidized mercury dry deposition measurements in the Four Corners area, USA, after large power plant mercury emission reductions
	Sather, Mark E.; Mukerjee, Shaibal; Smith, Luther; Mathew, Johnson; Jackson, Clarence; Flournoy, Michael
通讯作者	Sather, ME (corresponding author), US EPA, Air Monitoring & Grants Sect, Reg 6,1201 Elm St, Dallas, TX 75270 USA.
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
ISSN	1309-1042
出版年	2021
卷号	12 期号:1 页码:148-158
英文摘要	Gaseous oxidized mercury (GOM) dry deposition measurements using surrogate surface passive samplers were collected at six sites in the Four Corners area, U.S.A., for the two-year period August 2017-August 2019, after the implementation of large power plant mercury emission reductions across the U.S.A. Two-year baseline GOM dry deposition measurements at the same six sites in the Four Corners area, taken before the implementation of U.S.A. power plant mercury control regulations, were conducted earlier from August 2009-August 2011. The GOM dry deposition rate estimate decreased at the Four Corners area high elevation remote mountain site of Molas Pass, Colorado (3249 m asl) from 0.4 ng/m(2)h for August 2009-August 2011 to 0.3 ng/m(2)h for August 2017-August 2019. In contrast, GOM dry deposition rate estimates for the remaining five sites increased for August 2017-August 2019, ranging from 0.8 to 1.3 ng/m(2)h, up from the August 2009-August 2011 range of 0.6-1.0 ng/m(2)h. Comparisons of median GOM dry deposition values showed a statistically significant decrease of 17 ng/m(2) at the Molas Pass site between August 2009-August 2011 and August 2017-August 2019, and a statistically significant increase of 66 ng/m(2) and 64 ng/m(2), respectively, at the Mesa Verde National Park and Farmington Substation sites between August 2009-August 2011 and August 2017-August 2019. For the four years of GOM dry deposition data collected in the Four Corners area annual GOM dry deposition levels ranged from 2237 ng/m(2)yr (at the Molas Pass high elevation remote mountain site) to 11542 ng/m(2)yr (at the Mesa Verde National Park site), and the estimates were generally higher in magnitude in the spring and summer compared to the fall and winter. In light of the unexpected increases in GOM dry deposition rates at the nonremote sites, it is suggested that large regional wildfires and local anthropogenic mercury emission sources from cities and oil/gas production areas are possible notable contributors to the GOM dry deposition measurements collected in the Four Corners area.
英文关键词	Air Pollution Arid area Gaseous oxidized mercury Dry deposition Surrogate surface passive sampling
类型	Article
语种	英语
开放获取类型	Bronze, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000618659300002
WOS关键词	ATMOSPHERIC MERCURY ; SURROGATE SURFACES ; WET DEPOSITION ; AIR ; SITES ; FLORIDA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349648
作者单位	[Sather, Mark E.] US EPA, Air Monitoring & Grants Sect, Reg 6,1201 Elm St, Dallas, TX 75270 USA; [Mukerjee, Shaibal] US EPA, Ctr Environm Measurement & Modeling, E205-03, Res Triangle Pk, NC 27711 USA; [Smith, Luther] Serco Inc, 4819 Emperor Blvd,Suite 400, Durham, NC 27703 USA; [Mathew, Johnson; Jackson, Clarence] US EPA, Houston Lab, Reg 6,10625 Fallstone Rd, Houston, TX 77099 USA; [Flournoy, Michael] Eurofins Frontier Global Sci, 5755 8th St E, Tacoma, WA 98424 USA
推荐引用方式 GB/T 7714	Sather, Mark E.,Mukerjee, Shaibal,Smith, Luther,et al. Gaseous Oxidized mercury dry deposition measurements in the Four Corners area, USA, after large power plant mercury emission reductions[J],2021,12(1):148-158.
APA	Sather, Mark E.,Mukerjee, Shaibal,Smith, Luther,Mathew, Johnson,Jackson, Clarence,&Flournoy, Michael.(2021).Gaseous Oxidized mercury dry deposition measurements in the Four Corners area, USA, after large power plant mercury emission reductions.ATMOSPHERIC POLLUTION RESEARCH,12(1),148-158.
MLA	Sather, Mark E.,et al."Gaseous Oxidized mercury dry deposition measurements in the Four Corners area, USA, after large power plant mercury emission reductions".ATMOSPHERIC POLLUTION RESEARCH 12.1(2021):148-158.