Air pollution
the world have layers of wrapped around the thick atmosphere about 15 kilometers. The layers of the atmosphere above this contains
.Nitrogen, oxygen, steam, dust, and other microorganisms in these gases, the gas is most important to the existence of the creature in the world. Is oxygen and a layer of the atmosphere with oxygen enough.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"
.
. MeaningAir 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. Etc.
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the source air pollution sources of air pollution important in divided into 2 groups, as follows:
- vehicles.
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. FactoryThe vehicle causing air pollution is limited in large urban area, such as กรุงเทพมหานครและปริมณฑล. But the air pollution from factories.
the source from the vehicle
rapid economic growth of countries from the farm sector industries. To industrial to metropolis, the center of the business center and prosperity have estimated the population increased
.Quickly, causing the travel demand and transportation efficiency. Result in traffic congestion critical. And the days are deteriorating more and more. A traffic jam makes the car moving at speeds are low.The oil is burned more and more. The combustion of the fuel is not complete. And there are drainage pollution exhaust in proportion to increase. So the near the road with traffic jams.In areas where traffic is flexible. Pollutant draining into the atmosphere caused by the transportation, including carbon dust site gas oxide of nitrogen hydrocarbon compound. Dust
.
smaller than 10 micron. Lead and sulfur dioxide
the source from industrial
.Air pollution from the source, origin of the industry. Caused by the combustion of fuel and production process. Which is an important cause for effect. Air quality impact in the atmosphere and may result. Affect people's health in the community.3 type big together.
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solid fuels
liquid fuel such as fuel oil and diesel fuel is a gas
; Natural gas and gas LPG
.Air pollution caused by the combustion of various kinds including carbon dust site, dust, sulfur dioxide and nitrogen oxide gas
, carbon monoxide (Carbon monoxide: CO)
.Gas is colorless, taste and smell, lighter than air generally slightly when breathe. This gas to the hemoglobin in red blood cells (Haemoglobin) more oxygen to 200-250 imaginable. Born as carboxyhemoglobin (Carboxyhaemoglobin:CoHb) which reduces the ability of blood in an oxygen from the lungs to the various tissues in general. Key elements to cause blood CoHb more or less depending on the concentration of the gas. คาร์บอนมอนอ oxide in the air.Response of human based on the percent CoHb and feelings of individuals susceptible to gas type นี้
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CFCs or Chlorofluoro carbons gas is man-made. These gases do not occur in the natural air CFCs is air pollution a chemical. When these gases up to the ozone layer in the atmosphere of our high ozone destruction that
.When CFCs into the atmosphere will destroy the ozone layer, ozone, oxygen, causing the destruction of the ozone layer, the atmosphere is reduced. The radiation soft violet can sent to earth through the hole in the ozone layer. VariousCFCs in aerosol cans to pump fluid out in the form of a spray or mist thin gas does not affect the liquid in the cans. There are many countries including the United States not to use CFCs in aerosol cans.There are also other source of CFCs again, which cause the danger!
. Human cause acid rainThe pollute the air. Daily car and several factories to release toxins out of the pipe out into the air. These toxins will become part of steam in the clouds and cause acid and whenever rain fell.The river and ocean, statues, bridges, and many buildings in major cities around the stone mortar and หินปูนทั้งหลาย to reaction with the chemicals in acid rain. By erosion and if it is acid rain for a long time for many years, various construction.Wear and damage to eventually
.When the rain infiltration into the underground. Will corrode the minerals in soil and it took to throw the switch, acid rain ruined the leaves make plants grow slowly.
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