Air pollutant concentrations, as measured or as calculated by air pollution dispersion modeling, must often be converted or corrected to be expressed...

requires an air pollutant concentration over a specified averaging period, obtained from an air monitor or model. Taken together, concentration and time...

regulations limiting the allowable concentrations of gaseous pollutants in the ambient air or in emissions to the ambient air. Such regulations involve a number...

Air pollution is the contamination of air due to the presence of substances called pollutants in the atmosphere that are harmful to the health of humans...

pollutants are not destroyed, but rather converted into less harmful substances, or diluted/dispersed to non-harmful concentrations. Many pollutants are...

National Ambient Air Quality Standards (NAAQS, pronounced /ˈnæks/ naks) are limits on atmospheric concentration of six pollutants that cause smog, acid...

that govern the pollutant dispersion. The dispersion models are used to estimate the downwind ambient concentration of air pollutants or toxins emitted...

Roadway air dispersion modeling is the study of air pollutant transport from a roadway or other linear emitter. Computer models are required to conduct...

profile are air pollutant concentrations and sound levels. In each of those cases it may be important to analyze (air pollutant concentrations or sound levels)...

sensor data. Air dispersion models that combine topographic, emissions, and meteorological data to predict air pollutant concentrations are often helpful...

In order to meet these needs, the individual pollutant concentrations are compared to Alberta's Ambient Air Quality Objectives (AAQOs). The national AQHI...

major air pollutant concentrations exceeded Chinese standards. In the last few years, however, China has made significant progress in reducing air pollution...

indoor air pollution in some places can be much worse than that of the ambient air. Various factors contribute to high concentrations of pollutants indoors...

buildings. Air quality laws are often designed specifically to protect human health by limiting or eliminating airborne pollutant concentrations. Other initiatives...

Persistent organic pollutants (POPs) are organic compounds that are resistant to degradation through chemical, biological, and photolytic processes. They...

important, the National Ambient Air Quality Standards program sets standards for concentrations of certain pollutants in outdoor air, and the National Emissions...

Global warming portal Environment portal Air pollution measurement Criteria air pollutants Air pollutant concentrations Emission standard Environmental issues...

Y. (2009). "Air pollutant concentrations near three Texas roadways, part II: Chemical characterization and transformation of pollutants". Atmospheric...

following list of countries by air pollution sorts the countries of the world according to their average measured concentration of particulate matter (PM2...

high concentrations of pollutants such as particulate matter from wood smoke (especially during stagnant atmospheric conditions/inversions). Air quality...

Pollutant Standards Index (PSI) is a type of air quality index used in Singapore, which is a number used to indicate the level of pollutants in air....

regulations) regarding air pollution control. Air pollution emission plume – flow of pollutant in the form of vapor or smoke released into the air. Plumes are of...

specialized facilities to treat their wastewaters so that the pollutant concentrations in the treated wastewater comply with the regulations regarding...

ordinary 12-hour average when pollutant levels are changing. The PM NowCast is used in lieu of a 24-hour average PM concentration in the calculation of the...

counters. Urban air quality index (AQI) values are computed by combining or comparing the concentrations of a "basket" of common air pollutants (typically...

by particulate matter concentration List of least polluted cities by particulate matter concentration Criteria air pollutants Ghazipur landfill Bhalswa...

followed these initiatives. The Clean Air Act sets numerical limits on the concentrations of a basic group of air pollutants and provide reporting and enforcement...

the last 10 years, concentrations below the three limits were recorded. However, in all stations the concentrations of this pollutant as a daily average...

conditions such as age of air and concentration of pollutants are spatially uniform. In many air distribution arrangements, air is neither uniform nor perfectly...

location and time. An algorithm prediction of the pollutant concentrations can be translated into air quality index, same as actual measurements. Countries...