Now showing items 2531-2540 of 2569
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 ...
Climate projections and their impact on policy and practice
(John Wiley & Sons, Inc., 2010-09)
This article examines the relationship between projections of climate change and the responses to those projections. First, it discusses uncertainty and its role in shaping not only the production of climate projections ...
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 ...
Urban fox squirrels exhibit tolerance to humans but respond to stimuli from natural predators
(Wiley Periodicals, Inc.NASA Socioeconomic Data and Applications Center (SEDAC), 2021-09)
Animals in urban areas that experience frequent exposure to humans often behave differently than those in less urban areas, such as exhibiting less vigilance or anti‐predator behavior. These behavioral shifts may be an ...
Role of air scouring in anaerobic/anoxic tanks providing nitrogen removal by mainstream anammox conversion in a hybrid biofilm/suspended growth full‐scale WWTP in China
(Wiley Periodicals, Inc.McGraw Hill, 2021-10)
A full‐scale wastewater treatment plant in China experienced unintentional anammox bacterial enrichment on biofilm carriers placed in the anaerobic and anoxic zones of an anaerobic/anoxic/oxic process under ambient ...
Amphi-Atlantic phylogeography of direct-developing lineages of Lasaea, a genus of brooding bivalves
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-10)
Direct-developing intertidal Lasaea spp. occur in the North Atlantic as both continental margin and oceanic island populations. We conducted a molecular phylogenetic analysis of representative populations in order to test ...
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 ...