Air pollution
.Our world is enveloped in the layers of the atmosphere surrounding thick about 15 kilometers. The layers of the atmosphere above this contains nitrogen, oxygen, steam and dust เชื้อจุลินทรีย์ various of these gases.The creatures in the world is the oxygen and the layers of the atmosphere with oxygen enough. To live with a thickness of only 5 - 6 kilometers only, which usually is a component of various gas quite stable is nitrogen 78.09% oxygen carbon dioxide and inert gas 20.94% 0.Constant volume of the gas 97%. We hold that a fresh air but whenever its components change in quantity. Of dust, gas, smell, smoke, steam, steam soot and radioactivity in the atmosphere.We call such conditions. "Air" or "air pollution"
.The meaning of air pollution
.Air pollution means weather conditions with additives are higher than normal levels for a time. Long enough to cause harm to humans, animals, plants, or other property may occur เองตาม nature such as dust from the stormEarthquake, fire, gas air pollution occurred. Natural harmful to humans is very low. Because the source is far and quantity into the condition. The environment of human and animal is minimal. The case caused by human activities.The pollution from the exhaust. The road from the industrial production from agricultural activities by evaporation, some of the gas, which caused the waste and waste. And so on.
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