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Understanding Air Pollution Basics

Air pollution is the introduction of harmful substances into the atmosphere that can damage living things and the environment. It is composed of chemicals and particles that pose serious health risks. Air pollution caused around 7 million deaths worldwide in 2012 according to the World Health Organization. Major sources of air pollution include the burning of fossil fuels for electricity and transportation, industrial facilities, agriculture, and solvents.

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86 views3 pages

Understanding Air Pollution Basics

Air pollution is the introduction of harmful substances into the atmosphere that can damage living things and the environment. It is composed of chemicals and particles that pose serious health risks. Air pollution caused around 7 million deaths worldwide in 2012 according to the World Health Organization. Major sources of air pollution include the burning of fossil fuels for electricity and transportation, industrial facilities, agriculture, and solvents.

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MarvZz Villasis
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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AIR POLLUTION

JEFFREY MARVIN VILLASIS


ELISHA MARK GICANA
LEANDRO JOAQIN CARTERA
AIR POLLUTION
AIR POLLUTION is the introduction of harmful substances in the Earth’s atmosphere. It
composes of chemicals and particles that post serious health and environmental threats.
Generally any substance that people introduce into the atmosphere that has damaging
effects on living things and the environment is considered air pollution.
“Indoor air pollution and poor urban air quality are listed as two of the world's worst toxic pollution
problems in the 2008” (Blacksmith Institute World's Worst Polluted Places report)
“Air pollution in 2012 caused the deaths of around 7 million people worldwide” (2014 World Health
Organization report)

AIR POLLUTANT
An AIR POLLUTANT is a substance in the air that can have adverse effects on humans and the
ecosystem. The substance can be solid particles, liquid droplets, or gases.
CLASSIFICATION:
1. Primary pollutants - are usually produced from a process, such as ash from a volcanic
eruption.
Example: Carbon monoxide (motor vehicle exhaust)
Sulfur dioxide (factories)

2. Secondary pollutants - are not emitted directly. Rather, they form in the air when primary
pollutants react or interact.
Example: As coals are burned, smoke and sulfur dioxide mix. Smog is a resulting factor.

SOURCES
Anthropogenic (man-made) sources
These are mostly related to the burning of multiple types of fuel.

1. Stationary sources include smoke stacks of fossil fuel power stations,


manufacturing facilities (factories) and waste incinerators, as well as
furnaces and other types of fuel-burning heating devices. In developing and
poor countries, traditional biomass burning is the major source of air pollutants; traditional
biomass includes wood, crop waste and dung.

2. Mobile sources include motor vehicles, marine vessels, and aircraft.


3. Controlled burn practices in agriculture and forest management. Controlled or
prescribed burning is a technique sometimes used in forest management, farming, prairie
restoration or greenhouse gas abatement. Fire is a natural part of both forest and grassland
ecology and controlled fire can be a tool for foresters. Controlled burning stimulates the
germination of some desirable forest trees, thus renewing the forest.

4. Fumes from paint, hair spray, varnish, aerosol sprays and other solvents

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