AIR POLLUTION AND ITS EFFECTS
The effects of air pollution are not confined to the
atmosphere only .Air pollution containing sulfur dioxide and nitrogen oxide which
are major causes for acid rain and also
pollutes aquatic resources and soils. Air pollution is responsible for a
host of other ills including ozone depletion, smog and impaired indoor air
quality.
The major causes of air pollution are beyond control of
individuals with out the support of the government however awareness on the
subject will make us to fight such evils at our level by making more use of
public transport and planting more trees and not burring the waste :-
Power Plants
The thermal power plant burn fossil-fuels for power generation
and account for majority of power to the nation's electricity needs. Fossil
fuel emissions contain the major greenhouse gases, including carbon dioxide,
methane, nitrous oxide and fluorinated gases.
Vehicle Emissions
Vehicle emissions are another source of fossil fuel
emissions and air pollution. Private transportation accounts for about 8-10 percent of carbon footprint of the nation .
Industry
Industry is a major contributor to air pollution. Industrial
processes release pollutants such as nitrous oxide and hydrofluorocarbons into
the air. Agricultural practices, livestock rearing and landfills also
contribute to atmospheric methane concentrations. The overall effect is an
increase in the global warming potential.
Deforestation
Deforestation affects the atmosphere in several ways.
Forests act as sinks for carbon dioxide through a process called carbon
sequestration. Trees store carbon dioxide in their plant tissue as they take in
this gas to undergo food-making. In effect, this action removes carbon dioxide
from the air. When forests are burned and destroyed, this storage area for
carbon dioxide is removed, increasing the concentrations of atmospheric carbon
dioxide.
Smoking
You are still at risk of the dangers of smoking even if you
are a nonsmoker. It is also generated by burring of dry leaves ,papers and
other house holds .Another major area is firm work displays or burring of
crackers.
Dust
The developing countries have an other issue of constriction
of roads buildings and other infrastructure ,there are lot of rules for
reducing the dust mixing with air but they are often not followed .
Natural Processes
Natural processes can contribute to the effects of air
pollution. Natural events such as volcanoes and tornadoes can stir up debris
and cause widespread air pollution. Natural erosion of rock and soils also
releases toxins such as radon into the air. Radon is the second leading cause
of lung cancer all over the world
The major problems to human health other then the loss of
ozone layer , global worming or loss of various species . Smog ,acid rains ect are as under :-
Lung Cancer
Lung cancer is a disease that may be caused by air
pollution. The lung cancer is characterized as the uncontrolled growth of
abnormal cells in one or both lungs. Over time, the abnormal cells can develop
into tumors which effect the primary
function of the lungs that is to supply
the blood, with oxygen. The researchers concludes that urban air pollution boosts lung
cancer risk, and that motor vehicle emissions may be particularly problematic.
COPD
Chronic obstructive pulmonary disorder or COPD is a disease
that may be caused by air pollution. In simple that a person , with COPD, will
have loss of shape of airways and air sacs and they become distended or floppy, hence develop
chronic bronchitis and emphysema. The long-term exposure to air pollution especially
automobile exhaust boosts chances of lowering the lung function.
Asthma
Asthma is a disease that may be caused by air pollution from
cars, factories or power plants. The following air pollutants are common
triggers of asthma like ground level ozone, sulfur dioxide, fine particulate
matter and nitrogen oxide. Other important trigger for asthma attacks are environmental
or secondhand tobacco smoke.
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