Results 111 to 120 of about 802,707 (162)
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Nature, 1976
IN recent years the atmosphere has become contaminated with a large number of halogenated compounds. Whereas inert fluorocarbons are suspect as precursors of stratospheric ozone-destroying chlorine atoms, other halocarbons, such as vinyl chloride, chloroform and trichloroethylene, have been found to be carcinogens1,2.
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IN recent years the atmosphere has become contaminated with a large number of halogenated compounds. Whereas inert fluorocarbons are suspect as precursors of stratospheric ozone-destroying chlorine atoms, other halocarbons, such as vinyl chloride, chloroform and trichloroethylene, have been found to be carcinogens1,2.
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2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC), 2015
The chemistry of mercury, in reference to its behavior in the atmosphere, is more complex compared to other heavy metals. Main forms are: elemental mercury vapor (Hg0, called even or zerovalent metallic mercury), mercury vapor divalent (Hg22+ mercurous, or Hg2+ mercuric), organic mercury (especially methylmercury, MeHg).
Silvana Iacobellis +2 more
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The chemistry of mercury, in reference to its behavior in the atmosphere, is more complex compared to other heavy metals. Main forms are: elemental mercury vapor (Hg0, called even or zerovalent metallic mercury), mercury vapor divalent (Hg22+ mercurous, or Hg2+ mercuric), organic mercury (especially methylmercury, MeHg).
Silvana Iacobellis +2 more
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Transactions of the ASAE, 1981
ABSTRACT PERFORMANCE of ambient air wheat drying systems is simulated using weather data for St. Cloud, MN, Fargo, ND, and Grand Forks, ND. Evaluation criteria include energy use, completion date, moisture content distribution and dry-matter-decomposition.
null R. Vance Morey +2 more
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ABSTRACT PERFORMANCE of ambient air wheat drying systems is simulated using weather data for St. Cloud, MN, Fargo, ND, and Grand Forks, ND. Evaluation criteria include energy use, completion date, moisture content distribution and dry-matter-decomposition.
null R. Vance Morey +2 more
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Does Ambient Air Pollution Trigger Stillbirth?
Epidemiology, 2013We previously reported an increased risk of stillbirth associated with increases in trimester-specific ambient air pollutant concentrations. Here, we consider whether sudden increase in the mean ambient air pollutant concentration immediately before delivery triggers stillbirth.We used New Jersey linked fetal death and hospital discharge data and ...
Ambarina S, Faiz +5 more
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Connecticut's Dioxin Ambient Air Quality Standard
Risk Analysis, 1990Connecticut is the first state in the country to have adopted an ambient air quality standard for dioxins at 1 pg/m3, 2,3,7,8‐TCDD equivalents, as annual average. This paper describes the scientific basis and the methodology used by the State Department of Health Services (the risk assessment agency) in assisting the Department of Enviromental ...
Hari V. Rao, David R. Brown
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Air toxics in ambient air of Delhi
Atmospheric Environment, 2005Abstract Volatile organic compounds (VOCs) are major group of air pollutants which play critical role in atmospheric chemistry. It contributes to toxic oxidants which are harmful to ecosystem human health and atmosphere. Data on levels of VOCs in developing countries is lacking.
A SRIVASTAVA +4 more
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Journal of Physics E: Scientific Instruments, 1978
Atmospheric pollution arises from natural as well as from anthropogenic sources. The emissions from these two sources are estimated for some major pollutants (sulphur compounds, nitrogen compounds, carbon monoxide, particulate matter and hydrocarbons). Secondary pollutants, such as ozone, are formed by chemical reactions in the atmosphere.
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Atmospheric pollution arises from natural as well as from anthropogenic sources. The emissions from these two sources are estimated for some major pollutants (sulphur compounds, nitrogen compounds, carbon monoxide, particulate matter and hydrocarbons). Secondary pollutants, such as ozone, are formed by chemical reactions in the atmosphere.
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Ambient Air Quality Objectives
2013Ambient air quality objectives (AQOs), based on causal relationships between air pollution and environmental effects, are the cornerstone of air management. Nationally, Canada pioneered a three-tier framework in the 1970s, then experimented with a different approach, and is now moving to a structure echoing the original.
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