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Atmospheric Mercury (Hg) in the Adirondacks: Concentrations and Sources

机译：阿地伦达山脉的大气汞（Hg）：浓度和来源

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摘要

Hourly averaged gaseous elemental Hg (GEM) concentrations and hourly integrated reactive gaseous Hg (RGM), and particulate Hg (Hgp) concentrations in the ambient air were measured at Huntington Forest in the Adirondacks, New York from June 2006 to May 2007. The average concentrations of GEM, RGM, and Hg_P were 1.4 ± 0.4 ng m~(-3),1.8 ± 2.2 pg m~(-3), and 3.2 ± 3.7 pg m~(-3), respectively. RGM represents <3.5% of total atmospheric Hg or total gaseous Hg (TGM: GEM + RGM) and Hgp represents <3.0% of the total atmospheric Hg. The highest mean concentrations of GEM, RGM, and Hg_P were measured during winter and summer whereas the lowest mean concentrations were measured during spring and fall. Significant diurnal patterns were apparent in warm seasons for all species whereas diurnal patterns were weak in cold seasons. RGM was better correlated with ozone concentration and temperature in both warm (ρ~(RGM-ozone) = 0.57, ρ < 0.001; ρ~(RGM-temperature) = 0.62, ρ < 0.001) and cold seasons (ρ~(RGM-ozone) = 0.48, ρ = 0.002; ρ~(RGM-temperature) = 0.54, ρ = 0.011) than the other species. Potential source contribution function (PSCF) analysis was applied to identify possible Hg sources. This method identified areas in Pennsylvania, West Virginia, Ohio, Kentucky, Texas, Indiana, and Missouri, which coincided well with sources reported in a 2002 U.S. mercury emissions inventory.
机译：从2006年6月至2007年5月，在纽约阿迪朗达克斯的亨廷顿森林中测量了每小时平均气态元素Hg（GEM）浓度和每小时综合反应性气态Hg（RGM）和微粒Hg（Hgp）浓度。 GEM，RGM和Hg_P的浓度分别为1.4±0.4 ng m〜（-3），1.8±2.2 pg m〜（-3）和3.2±3.7 pg m〜（-3）。 RGM代表<3.5％的总大气汞或气态Hg（TGM：GEM + RGM），Hgp代表<3.0％的总大气汞。 GEM，RGM和Hg_P的最高平均浓度在冬季和夏季测量，而最低的平均浓度在春季和秋季测量。在所有物种的温暖季节，明显的昼夜模式明显，而在寒冷季节，昼夜模式却很弱。在温暖季节（ρ〜（RGM-臭氧）= 0.57，ρ<0.001;ρ〜（RGM-温度）= 0.62，ρ<0.001）和寒冷季节（ρ〜（RGM-臭氧）= 0.48，ρ= 0.002;ρ〜（RGM温度）= 0.54，ρ= 0.011）。潜在的源贡献函数（PSCF）分析用于识别可能的汞源。该方法确定了宾夕法尼亚州，西弗吉尼亚州，俄亥俄州，肯塔基州，德克萨斯州，印第安纳州和密苏里州的地区，这些地区与2002年美国汞排放清单中报告的来源相吻合。

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