Air pollution is one of the most important environmental problems, and is the result of human activities. The causes of this pollution are diverse, but the highest rate is caused by industrial, commercial, domestic and agricultural.
combustion used for heating, generating electricity or motion, is the pollutant emission process more meaningful. Other activities such as smelting and production of chemicals that can cause the deterioration of air quality if performed without control.
Clean air is a gas mixture composed of 78% nitrogen, 21% oxygen and 1% of different compounds such as argon, carbon dioxide and ozone. We understand air pollution as any change in the balance of these components, which alter the physical and chemical properties of air.
The main air pollutants are classified as:
UNITS:
are those who remain in the atmosphere as they were issued by the source. For evaluation of air quality are considered: oxides sulfur, carbon monoxide, nitrogen oxides, hydrocarbons and particulates.
SIDE:
are those who have been subjected to chemical changes, or are the product of the reaction of two or more primary pollutants in the atmosphere. These include photochemical oxidants and some short-lived radicals such as ozone.
Nationally, air pollution is limited to areas of high population density or industrial. Annual emissions of pollutants in the country are over 16 million tonnes, of which 65% is of vehicles.
In Mexico City generates 23.6% of such emissions, 3.5% in Guadalajara, Monterrey and 3%. Other industrial centers generate the remaining 70%.
combustion used for heating, generating electricity or motion, is the pollutant emission process more meaningful. Other activities such as smelting and production of chemicals that can cause the deterioration of air quality if performed without control.
Clean air is a gas mixture composed of 78% nitrogen, 21% oxygen and 1% of different compounds such as argon, carbon dioxide and ozone. We understand air pollution as any change in the balance of these components, which alter the physical and chemical properties of air.
The main air pollutants are classified as:
UNITS:
are those who remain in the atmosphere as they were issued by the source. For evaluation of air quality are considered: oxides sulfur, carbon monoxide, nitrogen oxides, hydrocarbons and particulates.
SIDE:
are those who have been subjected to chemical changes, or are the product of the reaction of two or more primary pollutants in the atmosphere. These include photochemical oxidants and some short-lived radicals such as ozone.
Nationally, air pollution is limited to areas of high population density or industrial. Annual emissions of pollutants in the country are over 16 million tonnes, of which 65% is of vehicles.
In Mexico City generates 23.6% of such emissions, 3.5% in Guadalajara, Monterrey and 3%. Other industrial centers generate the remaining 70%.
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