| air pollution | pollutants which contaminate the air | en | |||
| air pollution | Release into the atmosphere of gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the capacity of the atmosphere to dissipate them or to dispose of them through incorporation into the biosphere. Dust storms in desert areas and smoke from forest and grass fires contribute to particulate and chemical air pollution. Volcanic activity is the major natural source of air pollution, pouring huge amounts of ash and toxic fumes into the atmosphere. Air pollution may affect humans directly, causing irritation of the eyes or coughing. More indirectly, its effects can be measured far from the source, as, for example, the fallout of tetraethyl lead from automobile exhausts, which has been observed in the oceans and on the Greenland ice sheet. Still less direct are possible effects on global climates. See also smog | en | |||
| air pollution | The presence of contaminants in the air in concentrations that prevent the normal dispersive ability of the air, and that interfere with biological processes and human economics | en | |||
| air pollution | The soiling of the atmosphere by contaminants to the point that may cause injury to health, property, plant, or animal life, or prevent the use and enjoyment of the outdoors | en | |||
| air pollution | degradation of air quality resulting from unwanted chemicals or other materials occurring in the air See also air pollutant | en | |||
| air pollution | is the degradation of air quality resulting from unwanted chemicals or other materials occurring in the air | en | |||
| air pollution | The presence in the outdoor atmosphere of any dust, fumes, mist, smoke, other particulate matter, vapor, gas, odorous substances, or a combination thereof, in sufficient quantities and of such characteristics and duration as to be, or likely to be, injurious to health or welfare, animal or plant life, or property, or as to interfere with the enjoyment of life or property | en | |||
| air pollution | Degradation of air quality resulting from unwanted chemicals or other materials occurring in the air | en | |||
| air pollution | the presence of polluting gases and suspended particles in the atmosphere in excess of air quality standards | en | |||
| air pollution | Is present in the outdoor atmosphere of one or more air contaminants in sufficient quantities and of such characteristics and duration as is, or is likely to be, injurious to human health, plant, or animal life, or property, or which unreasonably interfere with enjoyment of life and property | en | |||
| air pollution | Contamination of the atmosphere by substances that, directly or indirectly, adversely affect human health or welfare Air pollution results from human activities, both deliberate releases (as from smokestacks) and fugitive emissions (as dust blown from streets or fields), and from natural sources, including sea spray, volcanic emissions, pollen, etc The Clean Air Act authoritizes EPA to regulate air pollution (see National Ambient Air Quality Standards) | en | |||
| air pollution | The presence of contaminants or pollutant substances in the air that interfere with human health or welfare, or produce other harmful environmental effects | en | |||
| air pollution | contamination of the atmosphere by the discharge of emissions of undesirable substances and gases, or the formation of these gases from the emissions by chemical reactions in the atmosphere | en | |||
| air pollution | The contamination of air, generally by those substances (particles, liquids, and gases) which are harmful, or likely to be harmful to people or their environment (e g human health, plant & animal life, property) | en | |||
| air pollution | Worsening of air quality resulting from unwanted chemicals or other pollutants occurring in the air | en | |||
| air pollution | The presence of unwanted material in the air in sufficient amount and under such circumstances as to interfere significantly with human comfort, health, or welfare, or with full use and enjoyment of property | en | |||
| air pollution | toxic or radioactive gases or particulate matter introduced into the atmosphere, usually as a result of human activity | en | |||
| air pollution | The presence in the atmosphere of one or more contaminants of a nature, concentration, and duration to be hazardous to human health or welfare 1 | en | |||
| air pollution | The existence in the air of substances in concentrations that are determined unacceptable Contaminants in the air we breathe come mainly from manufacturing industries, electric power plants, automobiles, buses, and trucks | en | |||
| air pollution | The presence of any substances in air that do not disperse and that can, in high enough concentrations, harm humans or other animals, vegetation, or materials Pollutants can include almost any natural or artificial substance capable of being airborne as solid particles, liquid droplets, and gases, or a combination of these forms Generally, air pollutants fall into two major groups: (1) those emitted directly from identifiable sources and (2) those produced in the air when two or more primary pollutants interact, or that react with normal atmospheric constituents Excluding pollen, fog, and dust, which are of natural origin, about 100 pollutants have been identified and fall into the following major categories: solids, sulfur compounds, volatile organic chemicals, nitrogen compounds, oxygen compounds, halogen compounds, radioactive compounds, and odors In Florida, air pollution is most serious in urban areas Federal and state laws have set limits on certain air pollutants | en | |||
| air pollution | The contamination of air around the plant due to the emission of gases, vapors and particulate material in the atmosphere | en | |||
| air pollution | (pollution atmosphérique) A condition of the air, arising wholly or partly from the presence therein of one or more air contaminants, that endangers the health, safety, or welfare of persons, interferes with normal enjoyment of life or property, endangers the health of animal life, or causes damage to plant life or property | en | |||
| air pollution | Release of harmful substances into the air due to engine operation and similar causes | en | |||
| air pollution | One or more chemicals or substances in high enough concentrations in the air to harm humans, other animals, vegetation, or materials Such chemicals or physical conditions (such as excess heat or noise) are called air pollutants | en | |||
| air pollution | The contamination of the atmosphere by waste gases, fuel exhaust, particulate matter such as smoke , and the like | en | |||
| air pollution | the presence of noxious substances in the air that we breathe | en | |||
| air pollution | The introduction of substances into the air which makes it impure in comparison with pure air | en | |||
| air pollution | pollution of the atmosphere; "air pollution reduced the visibility" | en | |||
| air pollution | pollution of the atmosphere; "air pollution reduced the visibility | en | |||
