What classifies something as an air pollutant?

What classifies something as an air pollutant?

Summary. Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities.

What are the 4 air pollutants?

The common air pollutants are:

  • Particulate matter (PM10 and PM2.
  • Ozone (O3)
  • Nitrogen dioxide (NO2)
  • Carbon monoxide (CO)
  • Sulphur dioxide (SO2)

What are the 7 air pollutants?

Air Pollutants

  • Carbon Monoxide.
  • Lead.
  • Nitrogen Oxides.
  • Ozone.
  • Particulate Matter.
  • Sulfur Dioxide.
  • Other Air Pollutants.

What are the 5 types of air pollutants?

5 Major Outdoor Air Pollutants

  • Ozone (O3)
  • Nitrogen Oxides (NOx)
  • Carbon Monoxide (CO)
  • Sulfur Dioxide (SO2)
  • Particulate Matter (PM10 and PM2.5)

What are non criteria pollutants?

All pollutants not classified as criteria air pollutants can be said to be non-criteria pollutants. Non-criteria pollutants include benzene, dioxins and pesticides.

Which is not a criteria pollutant?

7. Criteria pollutants are those which create pollution in the air. There are some criteria pollutants they are – nitrogen dioxide, carbon monoxide, ozone, particulate matter etc. Therefore, Lead air air toxics is not comes under criteria pollutant.

What are some examples of environmental pollutants?

Various Environmental Pollutants and Their Effect on Our Environment

  • Chlorofluorocarbons (CFC) These are gases that are very destructive to the protective ozone layer.
  • Lead.
  • Methane.
  • Carbon monoxide.
  • Particulate matter (PM)
  • Nitrogen oxides.
  • Sulfur dioxide.
  • Plastic.

What are and list the 6 criteria pollutants?

EPA has established national ambient air quality standards (NAAQS) for six of the most common air pollutants— carbon monoxide, lead, ground-level ozone, particulate matter, nitrogen dioxide, and sulfur dioxide—known as “criteria” air pollutants (or simply “criteria pollutants”).

What is a secondary air pollutant?

Nitrogen dioxide and other nitrogen oxides react with other chemicals in the air to form other pollutants, known as secondary pollutants. These secondary pollutants include ozone, particulate matter, acid rain, and other toxic chemicals.

Which are the 6 criteria air pollutants specified under the Clean Air Act quizlet?

The act identified six pollutants to monitor and control. Sulfur dioxide, nitrogen oxides, carbon monoxide, particulate matter, tropospheric ozone, and lead, carbon dioxide. The six listed under the Clean Air Act that the EPA must specify allowable concentrations of each pollutant.

What are common indoor air pollutants?


  • Mold and pollen.
  • Tobacco smoke.
  • Household products and pesticides.
  • Gases such as radon and carbon monoxide.
  • Materials used in the building such as asbestos, formaldehyde and lead.

Which of the following is not considered as air pollutant?

Nitrogen gas (N2) is not an air pollutant while CO, SO2 and NO are air pollutants.

What are the pollutants in the air?

The six pollutants are carbon monoxide, lead, ground-level ozone, nitrogen dioxide, particulate matter, and sulfur dioxide. The standards are set at a level that protects public health with an adequate margin of safety. for six common air pollutants (also known as “criteria air pollutants”).

Why are air pollutants called ” criteria ” by the EPA?

Criteria Air Pollutants. EPA calls these pollutants “criteria” air pollutants because it sets NAAQS for them based on the criteria, which are characterizations of the latest scientific information regarding their effects on health or welfare. These pollutants are found all over the U.S. They can harm your health and the environment,…

Which is the best definition of a toxic air pollutant?

Hazardous air pollutants, also known as toxic air pollutants or air toxics, are those pollutants that are known or suspected to cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental effects.

What does Clean Air Act mean for air pollution?

Air pollution refers to the release of pollutants into the air that are detrimental to human health and the planet as a whole. The Clean Air Act authorizes the U.S. Environmental Protection Agency…

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