Gas

Natural Gas
A combustible mixture of hydrocarbon gases that is shapeless and odorless in its pure form. While natural gas is formed primarily of methane, it can also include ethane, propane, butane and pentane.

Gas and oil drilling muds, oil production brines, and other waste associated with exploration for, development and production of crude oil or natural gas.
Source: Terms of the Environment
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Natural Gas Statistics
Detailed information about the production, use and costs of natural gas.

Gas-Fired Absorption Chiller - Mechanical equipment that is used to generate chilled water for cooling of buildings. Conventional chillers use electricity as the energy source, whereas gas-fired absorption chillers use clean burning natural gas.

gas - natural gas, used as fuel.
gasoline - petroleum fuel, used to power cars, trucks, lawn mowers, etc.
geothermal - literally, heat from the earth; energy obtained from the hot areas under the surface of the earth.

gas A state of matter characterized by a very low density and viscosity (relative to liquids and solids); comparatively great expansion and contraction occur with changes in temperature and pressure; ability to diffuse readily into other gases; ...

GAS PRICES / ENERGY POLICY (Environmental Article #74)
OUR POLITICIANS SEEM TO HAVE A GAS PROBLEM
High Gasoline Prices - The Real Problem Lies Elsewhere
MAJOR AIR POLLUTANTS (Environmental Article #178) ...

Gas (gaseous): See vapor.
Gray water: Domestic wastewater composed of wash water from household sinks, tubs, and washers.

Gas Sorption: Devices used to reduce levels of airborne gaseous compounds by passing the air through materials that extract the gases.

gas
a fluid having neither independent shape nor volume, but tending to expand indefinitely. The word is often used to denote anesthetics, combustibles (gasoline), poisonous materials, etc., whether liquid or solids at ordinary temperatures.

Gas Turbine: An engine that uses a compressor to draw air into the engine and compress it. Fuel is added to the air and combusted in a combustor. Hot combustion gases exiting the engine turn a turbine which also turns the compressor.

gas chromatograph/mass spectrometer : Highly sophisticated instrument that identifies the molecular composition and concentrations of various chemicals in water and soil samples.

Gas Chromatograph/Mass Spectrometer (GC/MS)
Highly sophisticated instrument that identifies the molecular composition and concentrations of various chemicals in water and soil samples.
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Soil Gas: Gaseous elements and compounds in the small spaces between particles of the earth and soil. Such gases can be moved or driven out under pressure.
Soil Moisture: The water contained in the pore space of the unsaturated zone.

Flue Gas Desulfurization (FGD) - A technology that employs a sorbent, usually lime or limestone, to remove sulfur dioxide from the gases produced by burning fossil fuels.

Soil gas survey
Soil gas or (soil vapor) is air existing in void spaces in the soil between the groundwater and the ground surface. These gases may include vapor of hazardous chemicals as well as air and water vapor.

Inert Gas - a gas such as helium, neon, or argon that does not react with other substances under ordinary conditions ...

Oil and Gas Waste: Gas and oil drilling muds, oil production brines, and other waste associated with exploration for, development and production of crude oil or natural gas.

Natural gas: A fossil fuel that is an odorless, colorless gas. Natural gas consists of 50 to 90 percent methane.

Natural Gas - The product of the decomposition of fossilized carbon and organic matter in the crust of the earth. Generally, it is composed of mainly methane, and leaks are a source of methane in the atmosphere.

natural gas renewable (NGR) =
National Geoscience Datasets =
National Greenhouse and Energy Reporting (NGER) = ...

Gas, rich in methane, which is produced by the fermentation of animal dung, human sewage or crop residues in an air-tight container. It is used as a fuel to heat stoves, lamps, run small machines and to generate electricity.

Gas Chromatography/Mass Spectroscopy (GC/MS): A method for separating, identifying, and quantifying organic compounds.

gas cl2), hypochlorous acid (HOCl), and/or hypochlorite
ion (OCl-) remaining in water after chlorination. This does
not include chlorine that has combined with ammonia, ...

a gas composed of molecules that absorb and reradiate infrared electromagnetic radiation. When present in the atmosphere, therefore, the gas contributes to the greenhouse effect (heating of the earth's atmosphere).

A gas emitted during organic decomposition by a select group of bacteria, which strongly smells like rotten eggs.
Hydrogeology
The science of chemistry and movement of groundwater.

Radon (Gas)
Radon is a naturally occurring Radioactive gas which is derived from the Uranium and Thorium decay series.

Landfill gas
The mixture of gases produced from the anaerobic breakdown of organic material in landfill.

Chlorine gas and sodium hypochlorite are the most commonly used disinfectants, because they are inexpensive and easy to manage.

Greenhouse gas trends
The combustion of fossil fuels, including the coal-burning power plants, automobile exhausts, factory smokestacks, ...

Chapter 3 - Gas Exchange Contents - Class Homepage Sections: Light Reactions Dark Reactions C4 and Photorespiration Environmental Factors Respiration Growth and Photosynthesis
When you have successfully completed this section you will: ...

Methane gas in the atmosphere is increasing at a greater rate than carbon dioxide. Changes in agricultural production from traditional farming methods to agri-business are the main cause. Rice production and cattle ranching are mainly responsible.

Oil & Gas Environmental Glossary
Air Emissions
Waste gases, vapours and small particles released into air.

Greenhouse Gas
Gases in the atmosphere, which can trap the heat escaping from the Earth, causing the temperature to go up.

Greenhouse Gas Emissions Calculators
Calculators from EPA (but some non-EPA sites)-Greenhouse gas emissions calculators are available online from EPA and other organizations.

A colourless gas that is naturally produced from animals and people in exhaled air and the decay of plants. It is removed from the atmosphere by photosynthesis in plants and by dissolving in water, especially on the surface of oceans.

Greenhouse Gas Inventory: A greenhouse gas emissions inventory is an accounting of the amounts and sources of emissions of greenhouse gases attributable to the existence and operations of an institution.

Greenhouse Gas. Any gas that absorbs infra-red radiation in the atmosphere.

Greenhouse Gas: A gas which contributes to the greenhouse effect. Common ones include carbon dioxide, methane and nitrous oxide. These gases occur naturally, but large amounts emitted by human activities are adding to the climate crisis.

Greenhouse Gas (GHG) (C):
A greenhouse gas is any gas that absorbs infrared radiation in the atmosphere.

greenhouse gas: any atmospheric gas that contributes to the greenhouse effect by reflecting heat rising from the earth back into the . normally the sun's heat hits the earth then escapes into from the sun.

Ozone: A gas composed of three atoms of oxygen (03). Ozone partially filters certain wavelengths of ultraviolet light from the Earth.

Compressed Gas: Any material which is a gas at normal temperature and pressure, and which is contained under pressure as a dissolved gas or liquefied by compression or refrigeration.

Coal, natural gas, liquefied petroleum gas, and fuels derived from crude oil (including petrol and diesel). They are called fossil fuels because they have been formed over long periods of time from ancient fossilised organic matter
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Thin layer of gas or air that surrounds the Earth. Processes in the atmosphere include winds, weather, and the exchange of gases with living organisms.
Hydrosphere-> ...

Vapor: The gas given off by substances that are solids or liquids at ordinary atmospheric pressure and temperatures.
Vapor Dispersion: The movement of vapor clouds or plumes in the air due to wind, gravity, spreading, and mixing.

trace gas A minor constituent of the atmosphere. The most important trace gases contributing to the greenhouse effect are water vapor, carbon dioxide, ozone, methane, ammonia, nitric acid, nitrous oxide, ethylene, sulfur dioxide, nitric oxide, ...

Compressed Natural Gas (CNG)- An alternative fuel for motor vehicles; considered one of the cleanest because of low hydrocarbon emissions and its vapors are relatively non-ozone producing.

Absorption Process, either chemical or physical, by which a substance or particle, gas or liquid, is drawn into the structure of another. Acid A material with pH of less than 7.0.

Convection current:circular movement of a gas or liquid between hot and cold areas. Conventional radar:instrument that detects the location, movement, and intensity of precipitation, and gives indications about the type of precipitation.

fossil fuels Fuels such as oil, natural gas, and coal that are made from decayed plants and animals that lived millions of years ago. These fuels are made of hydrogen and carbon (hydrocarbons).

spiracle on insects, the opening of a trachea (breathing tube) through which gas exchange occurs with the environment.
spiraling an imaginary spiral followed by a cycling nutrient as it flows downstream ...

amount of work that must be done per unit quantity of pure water in order to transport reversibly and isothermally an infinitesimal quantity of water, identical in composition with the soil water, from a pool at the elevation and the external gas ...

Nitrous oxide ( N₂O ) is 296 times as potent a greenhouse gas as CO₂ . It is used as a propellent in canned whipped cream.

Ozone A naturally occuring trace gas, chemical formula O3. In the stratosphere, it serves to absorb many harmful solar UV rays. More Information.
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#9 An international agreement known as the Kyoto Protocol has been negotiated to reduce greenhouse gas emissions, but the US is not participating in it.

Biomass: organic materials, including wood by-products and agricultural wastes that can be burned to produce energy or converted into a gas and used for fuel (Source: U.S. Department of Energy) ...

This gas carbon dioxide does the same in the earth's atmosphere. It acts like glass in a greenhouse, doing the same as my feathers do when I'm swimming in the very cold sea: my feathers keep me warm, ...

NITROGEN Nitrogen is a colourless, odourless gas that comprises 78% of the atmosphere. It is cycled between air and soil by means of the nitrogen cycle which includes a process known as nitrogen fixation.

0 ppmdenitrification The biochemical conversion of dissolved nitrate and nitrite nitrogen in soil or water to nitrogen gas. desalination The removal of dissolved salts, such as sodium chloride, from water.

See also: Environment, Waste, Water, Environmental, Air