The presence of substances in the atmosphere, particularly those that do not occur naturally. These substances are generally contaminants that substantially alter or degrade the quality of the atmosphere. The term is often used to identify undesirable substances produced by human activity, that is, anthropogenic air pollution. Air pollution usually designates the collection of substances that adversely affects human health, animals, and plants; deteriorates structures; interferes with commerce; or interferes with the enjoyment of life. Compare airborne particulates, designated pollutant, particulates, criteria pollutants.
One or more chemicals, substances, or physical conditions (such as excess heat or noise) in high enough concentrations in the air to harm humans, other animals, vegetation, or materials.
Pollution or contamination of the atmosphere with substances which are not generally found there (or are found in very small amounts). Pollutants can be gaseous, liquid (in the form of droplets), or solid (in the form of dust). The major source of air pollution today is industry, although cars and other forms of transportation using fossil fuels are also very important. Under certain circumstances, agricultural practices can be an important source of pollution by dust. Air pollutants can be toxic or otherwise harmful to humans and other living species. They can also harm buildings and other man-made objects. They can alter air quality, especially they can reduce visibility. Finally, they can modify important environmental cycles - dusts can increase reflection of sunlight, thus tending to cool the atmosphere, other chemicals can increase the thermal opacity of the atmosphere, thus tending to heat up the atmosphere (see greenhouse effect). Air pollution impacts at the local level, but they can also impact at the regional level (e.g., photochemical smog, acid rain) or at the planetary level (e.g., CFCis, CO2).
One or more chemicals in high enough concentrations in the air to (1) harm humans, other animals, vegetation, or materials or (2) alter climate. Excess heat and noise are also considered forms of air pollution. Such chemicals or physical conditions are called air pollutants. See primary pollutant, secondary pollutant.
Presence of substances in the atmosphere resulting either from human activity or natural processes, in sufficient concentration, for a sufficient time and under circumstances such as to interfere with comfort, health or welfare of persons or to harm the environment. ISO, 1980 BT pollution.
The contamination of the atmosphere by waste gases, fuel exhaust, particulate matter such as smoke, and the like.
the presence of polluting gases and suspended particles in the atmosphere in excess of air quality standards
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).
toxic or radioactive gases or particulate matter introduced into the atmosphere, usually as a result of human activity.
The contamination of the atmosphere by any toxic or radioactive gases and particulate matter as a result of human activity.
pollution of the atmosphere; "air pollution reduced the visibility"
is the introduction of contaminants into the air. Air pollution comes in four main categories: Aerosol; particulates; radiation and gasses. The main types of polluting gasses are: CO, NOx, SOx, VOCs (volatile organic compounds).
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.
something in the air we don't want. When unwelcomed chemicals are added to the air.
term to describe anything which contaminates the air that we breathe.
the presence of contaminants in the air in high enough concentrations to harm humans, wildlife, plants, or manmade things.
contamination of the atmosphere, mainly by the gaseous products of transportation and the production of electricity.
one or more chemicals in sufficient concentration in the air to harm humans, other animals, vegetation or materials.
The presence in the atmosphere of one or more air contaminants or combinations thereof in such quantities and of such duration that they are or may tend to be injurious to human, plant, or animal life, or property, or that interfere with the comfortable enjoyment of life or property or the conduct of business or other human activities.
Unwanted particles, mist or gases put into the atmosphere as a result of motor vehicle exhaust, the operation of industrial facilities or other human activity.
any substance in air that could, in high enough concentrations, harm man, other animals, vegetation or material. Pollutants may include almost any natural or artificial composition of airborne matter
Worsening of air quality resulting from unwanted chemicals or other pollutants occurring in the air.
Air pollution causes asthma, rhinitis, tiredness, and general malaise and is even thought to reduce people's sex drive.
A broad term covering all effects on the natural atmosphere, including particulate matter, carbon monoxide and other chemical pollutants, and sometimes noise or light.
Air that has been altered by human...
Accumulation in the atmosphere of substances that, in sufficient concentration, endanger human health or produce other measurable effects on living matter and other materials. Major types of pollutants are carbon dioxide, carbon monoxide, hydrocarbons, nitrogen oxides, particulates, sulfur dioxide, and photochemical oxidants, including ozone.
The contamination of the atmosphere by any toxic or particulate matter generated by human activity.
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.
Unreasonable air pollution which substantially interferes with the comfort of an occupier of premises• Environment
The presence of contaminant substances in the air that do not disperse properly and interfere with human health.
the introduction of contaminants into the atmosphere.
Air with contaminants in it that prevent the air from dispersing as it normally would, and interfere with biological processes.
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.
airborne gaseous, chemical, or organic matter which pollutes the atmosphere
The release of contaminants (carbon monoxide (CO), oxides of nitrogen (NOx), sulfur, hydrocarbons, and particulate matter (PM) or soot) into the atmosphere, the main sources being vehicles, industry, power plants, and smaller equipment such as lawn mowers
degradation of air quality resulting from unwanted chemicals or other materials occurring in the air.
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.
Air pollution sometimes results in smog.
The presence in the atmosphere of gases, fumes or particulate matter alone or in combination with each other, in sufficient concentration to disturb the ecological balance; cause objectionable effects, especially sensory offenses; cause transient or chronic illnesses; or impair or destroy property.
Anything that contaminates our air or affects its composition. Polluted air can contain dust and particles, such as smoke from chimneys, carbon monoxide, and nitrogen monoxide.
The presence of contaminants or pollutant substances in the air that interfere with human health or welfare, or produce other harmful environmental effects.
The contamination of air with harmful substances.
The degradation of air quality by contaminants to the point that they may injure health, property, plant or animal life, or prevent the use and enjoyment of the outdoors.
Air pollution is a chemical, physical (e.g. particulate matter), or biological agent that modifies the natural characteristics of the atmosphere. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the earth's ecosystems.