2017
DOI: 10.5194/acp-17-1689-2017
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Deciphering potential chemical compounds of gaseous oxidized mercury in Florida, USA

Abstract: Abstract. The highest mercury (Hg) wet deposition in the

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Cited by 33 publications
(34 citation statements)
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“…Tekran 1130 uses a KCl-coated denuder to pre-concentrate GOM, and the collected GOM is then thermally desorbed at 500 • C and converted to GEM for quantification. A number of studies have reported the significant interference of ozone and humidity on the GOM capture rate of the denuder (Lyman et al, 2010;Jaffe et al, 2014;McClure et al, 2014;Gustin et al, 2015). McClure et al (2014) found that the KCl-coated denuder only captures 20 %-54 % HgBr 2 in the ambient air under the influence of humidity and ozone.…”
Section: Uncertainties In Speciated Hg Concentration Measurementsmentioning
confidence: 99%
“…Tekran 1130 uses a KCl-coated denuder to pre-concentrate GOM, and the collected GOM is then thermally desorbed at 500 • C and converted to GEM for quantification. A number of studies have reported the significant interference of ozone and humidity on the GOM capture rate of the denuder (Lyman et al, 2010;Jaffe et al, 2014;McClure et al, 2014;Gustin et al, 2015). McClure et al (2014) found that the KCl-coated denuder only captures 20 %-54 % HgBr 2 in the ambient air under the influence of humidity and ozone.…”
Section: Uncertainties In Speciated Hg Concentration Measurementsmentioning
confidence: 99%
“…The use of thermal desorption to identify oxidized mercury compounds in the atmosphere has also been explored Huang et al, 2017). In this technique, nylon membranes are used to collect mercury from ambient air, and membrane samples are then desorbed in a programmed temperature sequence, and desorbed mercury is passed through a pyrolyzer and analyzed for GEM.…”
Section: Field Measurements Of Speciated Mercurymentioning
confidence: 99%
“…Oxidized mercury standards are loaded onto membranes and used to identify oxidized mercury compounds in the atmosphere. This method has shown that different oxidized mercury compounds exist in urban vs. rural atmospheres, at high versus lower elevation sites , and at the same location at different times or seasons (Huang et al, 2017). Evidence for HgBr 2 , HgCl 2 , HgO and nitrogen-and sulfur-containing compounds has been produced via this method Huang et al, 2017).…”
Section: Field Measurements Of Speciated Mercurymentioning
confidence: 99%
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