Now showing items 1-10 of 10
Solar radiation incident on the Martian surface
(Springer-Verlag, 1979-03)
Calculations indicate that the maximum daily solar radiation reaching the Martian surface is about 325 cal/cm 2 during southern hemisphere summer at latitude of about 40°S. In the ultraviolet region of the spectrum, the ...
Mercury concentrations in two “great waters”
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
Although many sources of Hg to surface waters have been identified including atmospheric deposition, resuspension of contaminated sediments, and direct discharges, there are very few recent data on ambient concentrations ...
International field intercomparison of atmospheric mercury measurement methods
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
To determine the extent of comparability of sampling and analytical procedures for atmospheric mercury (Hg) being used by different scientific groups around the world and hence the compatibility of measurement results, the ...
Wet deposition of mercury and ambient mercury concentrations at a site in the Lake Champlain basin
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
The “Great Waters” program, established in the 1990 Clean Air Act Amendments, mandated that atmospheric deposition of hazardous air pollutants to Lake Champlain (including Hg) be assessed. An assessment of the magnitude ...
Ambient levels and dry deposition fluxes of mercury to Lakes Huron, Erie and St. Clair
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
Ambient concentrations and dry deposition fluxes of Hg in the gas and particle phase to Lakes St. Clair, Erie and Huron were estimated with a hybrid receptor-deposition model (HRD). The ambient gas and particulate phase ...
Sources of mercury in the Arctic
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
Global and regional emission inventories of mercury are reviewed with special emphasis on the source regions with potential impact on the Arctic environment. These sources are located mostly in Eurasia and North America ...
Atmospheric sources, transport and deposition of mercury in Michigan: Two years of event precipitation
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
To assess the sources, transport and deposition of atmospheric mercury (Hg) in Michigan, a multi-site network was implemented in which Hg concentrations in event precipitation and ambient samples (vapor and participate ...
Nitrogen oxides, regional transport, and ozone air quality: Results of a regional-scale model for the midwestern United States
(Kluwer Academic Publishers; Springer Science+Business Media, 1993-03)
An overview of the role of NO x in the formation of rural O 3 , regional transport and its potential impact on urban air quality is presented. An analysis of a specific O 3 excursion in southeast Michigan (8-2-90) is ...
Particulate mercury in the atmosphere: Its significance, transport, transformation and sources
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
The importance of particulate mercury (Hg(p)) in the transport, chemistry and deposition of this toxic metal has long been underestimated and largely ignored. While it was once believed to constitute a small percentage of ...
An intensive multi-site pilot study investigating atmospheric mercury in Broward County, Florida
(Kluwer Academic Publishers; Springer Science+Business Media, 1995-02)
An intensive multi-site pilot study of atmospheric Hg was conducted in Broward County, Florida in August and September of 1993. Broward County, which contains the city of Fort Lauderdale, is located in southeastern Florida. ...