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Pollution from transportation
  Air pollution      
 
While since 20 years, industrial pollution has decreased from 45 to 65%, pollution from transport has increased by more than 30%, the main cause is the increase in automobile traffic.

And it is in the city that the situation is the most sensitive, because if pollution depends on the topography and weather conditions, a car consumes four times more than on Highway in the city. Urban congestion contribute to 75% to photochemical pollution and 40% to acid deposition.
 
An Impact physician/IPSOS survey, city dwellers are very sensitive to pollution:
-66% of those asked feel that the quality of the air in their city has instead deteriorated in recent years.
-97% of physicians and 83% of patients feel insuffisamments informed about the quality of air in their city.
-20% of city dwellers already suffered personally from pollution-related health disorders air;
-64% are willing to pay more for a non-polluting car.
 
In General, pollutants contribute to the increase in respiratory problems (asthma and other respiratory diseases), promote plant dieback (acid rain), and degraded buildings (fouling of the facades and oxidation of the metal parts).
 
To remedy this, the EU has set values limits for the main pollutants. At the French level, the air Act forced the communities to implement duty extended throughout the territory since January 1, 2000, monitoring of the quality of the air.
These devices allow real-time monitoring of pollution levels and trigger the necessary measures to remedy.
  Three levels of alert have therefore been established:
-level 1 corresponds to the values limits set by the European regulations. At this level, prefectural and municipal services are developed in awakening.
-level 2 corresponds to the exceedance of the threshold of 300 g/m3 for SO2 and NO2, and 200 g/m3 for ozone. Since 1995, the media are informed and advice are available to vulnerable populations.
-level 3 raises the maximum alert from 600 g/m3 for SO2 and NO2, and 300 g/m3 for ozone.
  TNE Manufacture of clean energy LiFePo4 Battery for electric vehicles  
  The main automotive pollutants  
  Carbon dioxide (CO2): not harmful, but active in the greenhouse effect.
  Carbon monoxide: toxic, it interferes with the absorption of oxygen by the blood, but life is short.
  Nitrogen oxides (Nox):
ozone precursors, very harmful. In addition, they produce acidic compounds on contact with moisture.
  Volatile organic compounds (VOCs): hydrocarbons that may be carcinogenic (benzene) and participate in the formation of ozone.
  Methane (CH4):
non-harmful and short-lived, but very active in the greenhouse effect.
  Particulate matter (PS):
suspected carcinogenic effects, the most fine being the most harmful.
  Sulphur oxide (SO2):
product of acidic compounds on contact of moisture.
  Ozone (O3): indirectly produced in urban areas by the action of solar ultraviolet radiation on Nox and VOCs. Very harmful to the respiratory system.
  The European vehicle emission standards
  Euro emission standards set the maximum residue limits for pollutant release for wheeled vehicles. It is a set of more stringent standards applicable to new vehicles. The objective is to reduce air pollution caused by road transport.
  Emissions of CO2 (naturally resulting from the combustion of carbonaceous materials) are not taken into account in the standard because it is not a pollutant gas direct (breathing CO2 is not toxic to humans and animals).
 
Diesel vehicles:
       
      Norme Euro 1 Euro 2 Euro 3 Euro 4 Euro 5
     
Oxides of nitrogen (NOX)
- 700 500 250 180
     
Carbon monoxide (CO)
2720 1000 640 500 500
      [Hydrocarbons (HC) + NOX] 970 900 560 300 230
      Particulate matter (PM) 140 100 50 25 5
 
Motor gasoline or LPG or the CNG vehicles:
     
      Norme Euro 1 Euro 2 Euro 3 Euro 4 Euro 5
     
Oxides of nitrogen (NOX)
1000 500 150 80 60
     
Carbon monoxide (CO)
2800 2200 2200 1000 1000
      [Hydrocarbons (HC) 1000 500 200 100 100
      Particulate matter (PM) - - - - 5(*)
    (*) only for cars gasoline direct injection operating in lean mixture
                 
 
                 
           
 
   
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