1) Air pollution is understood to be the presence in the air of substances or forms of energy that implies risk, damage or severe discomfort for persons and goods of any nature.
2) Since the Industrial Revolution began, the development of transport and the use of fuels have increased the concentration of carbon dioxide in the atmosphere, such as sulfur oxides and oxides of nitrogen.
3) Atmospheric pollution may have a local character or global.
4) Wildfires emit particles, gases, and substances that disperse in the atmosphere. The smoke plume associated with a forest fire can reach 10 km in height and penetrate into the stratosphere.
5) Similarly, volcanoes spew sulfur dioxide and significant amounts of pulverized lava rock known as volcanic ashes.
6) Methane is also an air pollutant agent; it is formed in the process of rotting organic matter and damaging the ozone layer. It can accumulate in the subsoil in high concentrations or mixed with other hydrocarbons forming as natural gasbags.
7) The increases in air pollution have been linked to lung function deterioration and increases in heart attacks.
8) Overall air quality has improved over the past 20 years, but urban areas are still a cause for concern.
9) The elderly and children are especially vulnerable to the effects of air pollution.
10) The level of risk depends on several factors: the amount of air pollution, the amount of air breathed at any given time and general health.
11) Other less direct ways people are exposed to air pollutants are consumption of water contaminated with air substances and contact with contaminated soil, dust or water.
12) Some of the most common symptoms that occur in human health because of air pollution are strong dizziness and intense headaches.
13) If the contaminated air is inhaled in large quantities, it can cause death.