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.
Vapor Dispersion
The movement of vapor clouds in air due to wind, thermal action, gravity spreading, and mixing.
Source: Terms of the Environment ...
Vapor: The gaseous phase of substances that are liquid or solid at atmospheric temperature and pressure, e.g., steam.
Vaporize: Conversion of a liquid into vapor.
Venturi: A channel that serves the measurement of water flows.
vapor capture system Any combination of hoods and ventilation systems that captures or contains organic vapors so they may be directed to an abatement or recovery device.
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Vapor: The gaseous form of a solid or liquid substance formed as it evaporates at atmospheric temperature and pressure.
Vaporization
The change of a substance from a liquid to a gas.
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Vapor ‚ A substance in the gas state that is below its critical temperature but still suspended in air. It is possible for a vapor to be liquefied by increased pressure. Vapors are usually not visible.
Vapor: The state of water in the hydrologic cycle in which individual molecules are highly energized and move about freely; also known as gas/gaseous.
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Vapor
The gaseous phase of substances such as water. Vaporize Conversion of a liquid into vapor.
Vapor Recovery Nozzles - A special gas pump nozzles that will reduce release of gasoline vapor into the air when people put gas in their cars.
Vapor Recovery Systems: Mechanical systems that collect and recover chemical vapors resulting from transfer of gasoline from operations such as tank-to-truck systems at refineries, tanker-to-pipeline systems at offshore oil operations, ...
Cold vapor: Method to test water for the presence of mercury
Coliform bacteria: A group of bacteria used as an indicator of sanitary quality in water. Exposure to these organisms in drinking water causes diseases such as cholera.
Soil vapor extraction
A process in which chemical vapors are extracted from the soil by applying a vacuum to wells.
Water Vapor: It's a Gas!
Water can take the form of an invisible gas called water vapor. Water vapor is naturally present in the atmosphere and has a strong effect on weather and climate.
Water vapor effects
Water vapor is the major contributor to Earth's greenhouse effect.
Vapor Plumes- Flue gases visible because they contain water droplets.
Vapor Pressure- A measure of a substance's propensity to evaporate, ...
Vapor Pressure: The partial pressure exerted by the vapor (gas) of a liquid or solid substance under equilibrium conditions. A relative measure of chemical volatility, vapor pressure is used to calculate air-water partition coefficients (i.e.
The vapor mixture trapped above a solid or liquid in a sealed vessel.
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tion of the vapor in the air.
dewater. 1) To remove or separate a portion of the water
present in a sludge or slurry. To dry sludge so it can be ...
The amounts of vapor in the air that form explosive mixtures; limits are expressed as lower and upper limits and give the range of vapor concentrations in air that will explode if an ignition source is present.
water vapor the gaseous state of water.
watershed the area drained by a river system.
Headspace: The vapor mixture trapped above a solid or liquid in a sealed vessel.
Rain Rain or any form of precipitation of dilute solutions of strong mineral acids, created by the mixing in the atmosphere of pollutants, typically sulfur dioxide and nitrogen oxides compounds, with naturally occurring oxygen and water vapor.
The temperature to which air with a given quantity of water vapor must be cooled to cause condensation of the vapor in the air. d
ewater. 1) To remove or separate a portion of the water present in a sludge or slurry.
Polyaromatic Hydrocarbons A family of chemical substances that are found in many types of oil; polyaromatic hydrocarbon vapors can cause harm to humans and animals that inhale them.
The most abundant greenhouse gases are water vapor and carbon dioxide. Others include methane, nitrous oxide, and chlorofluorocarbons. Ground blizzard:the drifting and blowing of snow that occurs after a snowfall has ended.
Relative humidity Very roughly, the dampness of the air; more correctly, the percentage saturation of the air with water vapor; better still, ...
Acid rain is a form of acid deposition in which sulphur dioxide (SO2) and nitrogen oxides (NOx) transform into acidic particles or vapors (such as sulphuric acid (H2SO4), ...
Ask students if they notice water vapor escaping from the container? Did they detect a change in the shape of the water surface? Depending on the air temperature, evaporation rates change. Surface tension is also reduced as water is heated.
Fuel Cell - An electrochemical device in which hydrogen is combined with oxygen to produce electricity with heat and water vapor as by products. Natural gas is often used as the source of hydrogen with air as the source of oxygen.
Hazardous Atmosphere: An atmosphere that may expose employees to the risk of death, incapacitation, impairment or acute illness from one or more of the following causes: Flammable gas, vapor, ...
Common greenhouse gases include water vapor, carbon dioxide (CO2), methane (CH4), nitrogen oxides (NOx), ozone (O3), chlorofluorocarbons (CFCs), halogenated fluorocarbons (HCFCs), perfluorinated carbons (PFCs), ...
If a compact fluorescent lamp breaks in your home, open nearby windows immediately to disperse any mercury vapor that may escape, carefully sweep up the glass fragments, ...
Liquids which easily vaporize or evaporate at room temperature.
Volatile Organic Compound
Any organic compound that participates in atmospheric photochemical reactions except those designated by EPA as having negligible photochemical reactivity.
Note: The process may be the physical solution of a gas, liquid, or solid in a liquid, attachment of molecules of a gas, vapor, liquid, or dissolved substance to a solid surface by physical forces, etc.
The process of water vapor (gas) changing into liquid water. An example of condensation can be seen in the tiny water droplets that form on the outside of a glass of iced tea as warmer air touches the cooler glass.
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Hydrologic Cycle (Water Cycle): Water in its various manifestations as vapor evaporated from oceans, lakes, streams, and plants; rain and snow; snowpack or glacier; groundwater or surface runoff; and finally as streams and rivers returning to the sea.
This group includes the common gases of carbon dioxide and water vapor, but also rarer gases such as methane and chlorofluorocarbons (CFCs) whose properties relate to the transmission or reflection of different types of radiation.
Volatile Organic Compounds (VOCs): compounds that vaporize easily and have low water solubility that are often human-made chemicals used and produced in the manufacture of paints, pharmaceuticals, ...
Fumes: Airborne particles, usually less than 1 micrometer in size, formed by condensation of vapors, sublimation, distillation, calcination or chemical reaction.
Fumigant: A biocide that is vaporized to kill pests. Used indoors or outdoors.
The loss of water from the soil through vaporizing, both by direct evaporation and by transpiration from plants.
Facultative bacteria
Bacteria that can live under aerobic or anaerobic conditions.
Organic chemical compounds, excluding methane, that under normal conditions can vaporise and enter the atmosphere. NMVOCs include such compounds as benzene, xylene, propane and butane.
Volatile chemicals produce vapors readily. Volatile organic chemicals include gasoline, industrial chemicals such as benzene, solvents such as toluene and xylene, and tetrachloroethylene (perchloroethylene, the principal dry cleaning solvent).
greenhouse gases: Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
groundwater: Groundwater is the water that flows underground filling soil and flowing out into springs and aquifers.
Toxic Cloud
An airborne mass of gases, vapors, fumes, or aerosols of toxic materials.
Volatile
Any substance which evaporates quickly. ...
Condensation: The process by which a vapor becomes a liquid.
Contamination (Water): The adding of any substance to water which makes it unfit for use.
Emission - The release of any gas, particle, or vapor into the environment from a commercial, industrial, or residential source, including smokestacks, chimneys, and motor vehicles.
Transpiration. The process in which plant tissues give off water vapor to the atmosphere as an essential physiological process.
Turbidity. Thick or opaque with matter in suspension; muddy water.
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Volatile A material which will vaporize easily.
Volatile solids (VS) is the amount of matter which volatilizes (or burns) when a water sample is heated to 550EC.
Capture Efficiency: The fraction of organic vapors generated by a process that are directed to an abatement or recovery device.
About one drop is in the atmosphere as vapor, clouds and precipitation (or the steam in your bathroom).
Another drop is in our soil, and part of life itself (our bodies are made up mostly of water, for instance).
Fumigant
A pesticide vaporized to kill pests. Used in buildings and greenhouses.(1) ...
Volatile organic compounds (VOCs)
substances such as solvents that are liquid at room temperature, but vaporise significantly and take part in the generation of ozone pollution in the lower atmosphere ...
An incinerator with a rotating combustion chamber that keeps waste moving, thereby allowing it to vaporize for easier burning.
Source: Terms of the Environment
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Gaseous constituents of the atmosphere, both natural and from human activity, that absorb and re-emit infrared radiation. Water vapor (H2O) is the most abundant greenhouse gas. Greenhouse gases are a natural part of the atmosphere
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Water freezes in the extracellular spaces creating a very high vapor deficit which pulls liquid water out of the living cells. The cells actually become quite dehydrated as water moves out and freezes in the extracellular spaces.
Greenhouse Effect - The warming of earth's surface and lower atmosphere as a result of carbon dioxide and water vapor in the atmosphere, which absorb and reradiate infrared radiation.
Organic Compound: any carbon-based substance, including some petroleum products, solvents, pesticides, and halomethanes. Volatile organic compounds (VOCs) are those which are readily vaporized; a number of these are known or probable carcinogens.
Total pressure may also be derived from the measurement of the partial pressure of the water vapor in equilibrium with the soil water.
These gases occur naturally, but large amounts emitted by human activities are adding to the climate crisis. Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, halogenated fluorocarbons, ozone, ...
 See also: Water, Air, Environment, Organic, Liquid
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