搜索结果: 1-15 共查到“大气科学 Mercury”相关记录38条 . 查询时间(0.136 秒)
Mercury-laden fog swirls over coastal California,scientists find
Mercury-laden fog swirls coastal California scientists
2015/9/9
What do the roof of a building in a West Coast redwood forest, a bluff in California chaparral, and a research vessel in Monterey Bay have in common?
They're often draped in tendrils of fog. That mak...
Researchers Develop New Instrument to Monitor Atmospheric Mercury（图）
Researchers Instrument to Monitor Atmospheric Mercury
2015/3/4
Researchers at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science developed and tested a new sensor to detect ambient levels of mercury in the atmosphere. Funded through ...
Mercury Emissions from a Coal-Fired Power Plant and Their Impact on the Nearby Environment
Mercury Coal-fired power plant Emission factor Atmospheric emission
2016/3/25
This study investigated Hg emissions from a coal-fired power plant (CFPP) and their impact on the nearby environment.
Atmospheric Hg concentrations were measured at sampling sites near a CFPP located...
Quantitative assessment of upstream source influences on total gaseous mercury observations in Ontario, Canada
upstream source total gaseous mercury Ontario, Canada
2011/2/25
Hourly total gaseous mercury (TGM) concentrations at three monitoring sites (receptors) in Ontario were predicted for four selected periods at different seasons in 2002 using the Stochastic Time-Inver...
Global atmospheric model for mercury including oxidation by bromine atoms
Global atmospheric model mercury oxidation bromine atoms
2010/12/28
Global models of atmospheric mercury generally assume that gas-phase OH and ozone are the main oxidants converting Hg0 to HgII and thus driving mercury deposition to ecosystems. However, thermodynamic...
A review of worldwide atmospheric mercury measurements
worldwide atmospheric mercury measurements observed gaseous Hg global Hg emission
2010/9/14
The analysis of Hg concentration patterns indicates the differences in regional source/sink characteristics, with increasing variability toward areas strongly influenced by anthropogenic sources. The ...
Release of mercury halides from KCl denuders in the presence of ozone
mercury halides KCl denuders the presence of ozone
2010/9/14
KCl-coated denuders have become a standard method for measurement of gaseous oxidized mercury, but their performance has not been exhaustively evaluated, especially in field conditions. In this study,...
Identification of potential regional sources of atmospheric total gaseous mercury in Windsor, Ontario, Canada using hybrid receptor modeling
potential regional sources atmospheric total gaseous mercury hybrid receptor modeling
2010/8/16
Windsor (Ontario, Canada) experiences trans-boundary air pollution as it is located on the border immediately downwind of industrialized regions of the United States of America. A study was conducted ...
Long range transport of mercury to the Arctic and across Canada
Long range transport mercury the Arctic Canada
2010/8/16
This study is the most extensive study to date on the transport of mercury to the Arctic. Moreover, it is the first such study to use a fully-coupled, online chemical transport model, Environment Cana...
Global mercury emissions to the atmosphere from anthropogenic and natural sources
Global mercury anthropogenic natural sources
2010/8/13
This paper provides an up-to-date assessment of global mercury emissions from anthropogenic and natural sources. On an annual basis, natural sources account for 5207 Mg of mercury released to the glob...
Study of spatiotemporal variation of atmospheric mercury and its human exposure around an integrated steel plant, India
spatiotemporal variation atmospheric mercury an integrated steel plant
2010/8/13
Mercury release by coal combustion has been significantly increased in India. Mercury content in coal has been analyzed to 0.272 ppm by Central Pollution Control Board. Toxicological effects of elemen...
Atmospheric deposition of mercury and major ions to the Pensacola (Florida) watershed: spatial, seasonal, and inter-annual variability
mercury major ions the Pensacola (Florida) watershed inter-annual variability
2010/8/13
Atmospheric deposition was measured at three sites in the Pensacola Bay watershed, Florida, between November 2004 and December 2007. Mercury deposition in the Pensacola Bay watershed was similar to th...
Circumpolar measurements of speciated mercury, ozone and carbon monoxide in the boundary layer of the Arctic Ocean
Circumpolar measurements speciated mercury ozone and carbon monoxide the boundary layer the Arctic Ocean
2010/8/13
Using the Swedish icebreaker Oden as a platform, continuous measurements of airborne mercury (gaseous elemental mercury (Hg0), divalent gaseous mercury species HgIIX2(g) (acronym RGM) and mercury atta...
Atmospheric wet deposition of mercury and other trace elements in Pensacola, Florida
Atmospheric wet deposition mercury other trace elements Pensacola
2010/8/13
In an effort to understand and quantify the impact of local, regional, and far-distant atmospheric mercury sources to rainfall mercury deposition in the Pensacola, Florida watershed, a program of even...
Trends in long-term gaseous mercury observations in the Arctic and effects of temperature and other atmospheric conditions
long-term gaseous mercury observations the Arctic temperature and other atmospheric conditions
2010/8/13
Gaseous elemental mercury (GEM) measurements at Alert, Canada, from 1995 to 2007 were analyzed for statistical time trends and for correlations with meteorological and climate data. A significant decr...