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What are contaminants in the air?

What are contaminants in the air?

They are particulate matter (often referred to as particle pollution), ground-level ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead. EPA calls these six pollutants “criteria” air pollutants because it regulates them by developing limits that are based on human health and/or environmental criteria.

What are the 4 major outdoor air pollutants?

These six pollutants (carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter of different size fractions, and sulfur dioxide) are common in outdoor air and can harm human health and the environment.

What are the 5 main air pollutants?

Air Pollutants

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

What number is bad air quality?

Types of Air Pollutants

Air Quality Index (AQI) Values Levels of Health Concern Colors
When the AQI is in this range: ..air quality conditions are: …as symbolized by this color:
101-150 Unhealthy for Sensitive Groups Orange
151 to 200 Unhealthy Red
201 to 300 Very Unhealthy Purple

What are the 2 major sources of air pollution in urban areas?

The recently published study shows, based on the available information, that traffic (25%), combustion and agriculture (22%), domestic fuel burning (20%), natural dust and salt (18%), and industrial activities (15%) are the main sources of particulate matter contributing to cities’ air pollution.

What are the 5 causes of air pollution?

We have listed 10 common air pollution causes along with the effects that have serious implication on your health on a daily basis.

  • The Burning of Fossil Fuels.
  • Industrial Emission.
  • Indoor Air Pollution.
  • Wildfires.
  • Microbial Decaying Process.
  • Transportation.
  • Open Burning of Garbage Waste.
  • Construction and Demolition.

What are the 4 types of air pollution?

Types of air pollution

  • particulate matter.
  • nitrogen dioxide.
  • ozone.
  • sulphur dioxide.

What are 3 types of air pollution?

There are three primary sources of air pollution: chemical, biological, and particulate. Chemical air pollutants include a variety of substances created through combustion such as nitrogen oxide, carbon dioxide, lead, and sulfur.

What are the causes and effects of air pollution?

Causes and Effects of Air Pollution. Air pollution threatens the health of humans and other living beings in our planet. It creates smog and acid rain, causes cancer and respiratory diseases, reduces the ozone layer atmosphere and contributes to global warming. Air pollution is caused when air in the atmosphere is filled with particulate matter.

What is causing air pollution?

Air pollution can be defined as any harmful material that is present in the earth’s atmosphere. The causes of such pollution, therefore, are many and highly varied. Some sources are natural, such as volcanism or forest fires started by lightning, while others are brought about by human activity, such as the burning of fossil fuels.

What are the different types of air pollution?

The two most widespread types of air pollution are the ozone and particle pollution (soot), but air pollution also may include serious pollutants such as carbon monoxide, lead, nitrogen oxides and sulfur dioxide, volatile organic compounds (VOCs) and toxins such as mercury, arsenic, benzene , formaldehyde and acid gases.