Origin of vehicle the rapid economic growth of the country's agricultural sector. The industry is made, the center of Bangkok's business and population growth are increasing rapidly. Causing the demand for travel and transportation more. Resulting in traffic congestion into crisis. And since today is deteriorating more and more. Traffic congestion makes the car move at low speed. To stop and out frequently. Up burning more fuel. The incomplete combustion of fuel. Ventilation and exhaust emissions in proportion to the increase. The area near roads with heavy traffic. Air pollution problems are more severe. In areas where traffic is flowing freely. Pollutants that drain into the atmosphere caused. Transportation, including carbon monoxide Oxides of nitrogen gas hydrocarbons Dust particles smaller than 10 microns, lead and sulfur dioxide.
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