air quality management

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Air pollution has become a problem inINDIA. It has damaged every aspect of environment including vegetation, animals, human health, water resources and properties. The primary causes of air pollution are both man madeand natural processes. The combustion of fossil fuels in households and industrial operations is mainly contributing to emission of pollutants in the atmosphere. The national government regulates air pollution throughlaws and policies in order to protect human health and theenvironment.There are several words that are used when discussing thesubject of air pollution and this will be further discussedin the activity

Learning Objectives

Su Learning Objectives
At the end of lesson, the students will be
able to:
Define the terms Air Pollution and Air
Pollutants
Distinguish between Ambient Air
Pollution and Indoor Air Pollution,
Urban Air Pollution and Rural Air
Pollution.
List at least 5 Criteria pollutants and
5 Hazardous Air Pollutants.btopic

What is Air Pollution? What are Air
Pollutants?
Air pollution occurs when there is a high
concentration of certain substances that causes
the atmospheric environment to become toxic
enough to have adverse impacts on every
aspects of environment. The substances that
are responsible for air pollution are known as
air pollutants. Air pollutants can be gaseous,
liquid or solid in form, and can come from
natural as well as human sources.

Sources of Air Pollution

Source Pollution
Natural Sources
Dust Storms: Dust Storms are produced due to wind circulation
around the planet earth to cause dust pollution.
Forest Fires: Huge quantities of smoke are emitted during forest fires.
Volcanoes: Volcanoes release lots of solid particles, gases and
radiation.
Sea Spray: It is a continuous phenomenon, which is a major source
of particulates (liquid droplets) pollution in the atmosphere.
Plant Pollen: During spring, lots of plant pollen is produced and
spread faster by wind to cause dust pollution.
Man Made Sources
Domestic Pollution by use of fossil fuels and chemical substances
such as insecticides.
Industrial pollution by industries, power plants, chemical plants.
Traffic Pollution by use of fossil fuel in vehicles

SubRoad traffic emissions, particularly from diesel
vehicles are a major source of Particulate Matter
(PM) and Nitrogen Oxide. On the other hand, Carbon
Monoxide (CO) is a colorless, odorless gas that is
formed when carbon in fuel is not burned completely.
It is a component of motor vehicle exhaust. Higher
levels of CO generally occur in areas with heavy traffic
congestion. PM10 particles (the fraction of particulate
in air of very small size (<10 µm) are also of major
current concern, as they are small enough to penetrate
deep into the lungs and so potentially pose significant
health risks. These particles can be directly emitted
from sources such as forest fires, or they can form
when gases emitted from power plants, industries and
automobiles react in the air. topic

Another major criteria air pollutant in cities is ozone
that occurs at ground level. Ozone forms when
nitrous oxides and hydrocarbons react with sunlight.
However, not everything about ozone is bad. In fact,
its presence in the upper atmosphere is beneficial
because it keeps out harmful ultra-violet rays from
reaching the earth’s surface, which is one of the
major causes of skin cancer. Ozone only becomes
problematic when it occurs near the ground where it
can be inhaled. When inhaled, ozone causes reduced
lung capacity, choking, and coughing.

Main topic