Atmospheric pollution
The atmospheric pollution is the presence of harmful substances in the atmosphere and they cause damage to man, animals and plants.
The harmful substances that are sent forth in the air can have light or very serious effects for example irritation to the eyes or more serious as the cancer.
The most dangerous polluting substances are: carbon's monoxide, the oxides of sulphur, the ozone and the radon.
Many polluting factors are from natural origin as, for instance, the gases sent forth by the volcanos and the burning of the forests.
The greatest amount of pollution is caused by the man and by the activities that it develops.
The use of fuels fossils for the heating sends in the air harmful substances as the dioxide of sulphur.
The road traffic engraves a lot on the atmospheric pollution in fact the issues of sulphur of the cars it represents 80% of the atmospheric pollution.
These issued harmful substances in the air not only cause serious damages to the man but also to the environment, in fact, in our country the number of animal, forests and agricultural lands is more and more decreasing.
The atmospheric pollution can be separated in primary and secondary.
The primary pollution represents all those substances that are sent forth by the natural sources while the secondary pollution represents all the substances that are sent forth following chemical and physical transformations.
According to me the man should use the resources that are available with more care, trying to decrease the issuing of harmful substances.
Written by: Stefano Damiani (free3@itcgbianchi.it )