Sources of Air Pollution

Over industrialization and globalization, the economic growth has been evolving with pollution since a few decades ago. Majority of human now are exposed to the advance technologies and luxury of life. However, these scenarios do not indicate that life nowadays is much better than the olden days. These evolutions in line with the increasing of pollution index especially in air.

Anthropogenic (man-made) factor contributed in air pollution:

i. Stationary sources

ii. Mobile sources

iii. Controlled burn

iv. Fume

v. Waste deposition

vi. Military resources

vii. Open Burning

Stationary sources

Include smoke stacks of power plants, 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.

Mobile sources
Include motor vehicles, marine vessels, and aircraft.

Controlled burn

Practice 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.

Fume

From paint, hair spray, varnish, aerosol sprays and other solvents

Waste deposition

In landfills, which generate methane. Methane is highly flammable and may form explosive mixtures with air. Methane is also an asphyxiant and may displace oxygen in an enclosed space. Asphyxia or suffocation may result if the oxygen concentration is reduced to below 19.5% by displacement.

Military resources,
Such as nuclear weapons, toxic gases, germ warfare and rocketry

Open Burning

Open burning including backyard burning occurs when people burn household trash on their own property etc. Typical household trash burned consists of item includes: 

o Paper. 

o Cardboard. 

o Food scraps. 

o Plastics.

o Yard trimmings. 

o Leaves.