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THE
CONSEQUENCES OF AIR POLLUTION
Environment
Air
pollution is caused by the presence in the atmosphere of toxic substances,
mainly produced by human activity in recent years. These gases and chemicals
generate a number of phenomena and consequences for the ecosystems and living
things that populate our planet.
air-pollution
effects
Air
pollution affects everyone and all sectors: animals, crops, cities, forests,
aquatic ecosystems ... In recent years, however, we have been interested in two
areas in particular, which are subject to numerous adverse consequences of air
pollution: the environment and human health.
The
consequences of air pollution on the environment
Polluted
air, floating on the surface of the earth, is washed away by wind and rain.
Clouds and high temperatures also help disperse pollution to reach very long
distances from its point of origin.
Air
pollution has a major impact on the process of plant evolution by preventing
photosynthesis in many cases, with serious consequences for the purification of
the air we breathe.
The
accumulation of gases in the atmosphere also generates environmental problems
with sadly known consequences: acid rain, depletion of the ozone layer, global
warming, greenhouse effect ... The concentration of these gases in the
atmosphere, mainly the dioxide of carbon, increases on average by 1% per year.
This phenomenon is due to the properties of certain gases (carbon dioxide,
methane, nitrous oxide, ozone and chlorofluorocarbons) to trap the heat of the
sun in the atmosphere, preventing it from returning to space after having been
reflected by Earth.
Air
pollution contributes to the formation of acid rain, atmospheric precipitation
in the form of rain, frost, snow or fog, which is released during the
combustion of fossil fuels and transformed by contact with steam. water in the
atmosphere. Acid rain changes the amount of chemicals in soils and fresh water,
affecting food chains.
pollution-air
source
The
consequences of air pollution on human health
Our
continued exposure to these air pollutants is responsible for the deterioration
of human health.
Air
pollution can cause cardiovascular problems, allergies, asthma attacks,
conjunctivitis, bronchial diseases, lung or skin cancer, vision problems, blood
problems in the child's mental development, among others. The most vulnerable
people are children, the elderly, pregnant women and the sick.
Thus some
scientists have been able to establish a direct relationship between the
increase of polluting particles in cities and the thickening of the internal lining
of the arteries or atherosclerosis. Many studies have also found that groups of
people living near busy urban areas have more respiratory problems than average
and are more likely to develop disease. There are many more cases of children
with bronchitis and slow lung development in large cities.
