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ORGANIC AIR POLLUTANTSAcrylonitrileBenzeneButadieneCarbon disulfideCarbon monoxide1,2-DichloroethaneDichloromethaneFormaldehydePolycycli aromatic hydrocarbons (PAHs)Polychlorinated biphenyls (PCBs)Polychlorinated dibenzodioxins and Dibenzofurans(PCDDs/PCDFs)StyreneTetrachloroethyleneTolueneTrichlorethylenevinylchloride.
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1. Air Pollution
5. What is air pollution? contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health
Air pollution only occurs outdoors
6. Sources of Outside Air Pollution Combustion of gasoline and other hydrocarbon fuels in cars, trucks, and airplanes
Burning of fossil fuels (oil, coal, and dinosaur bones)
Insecticides
Herbicides
Everyday radioactive fallouts
Dust from fertilizers
Mining operations
Livestock feedlots
7. A major form of air pollution is emissions given off by vehicles.
The number of cars in EU has doubled between 1970 and 1994 – 3% per year
8. What’s in smog particulates (especially lead)
nitrous oxides
potassium
Carbon monoxide
Other toxic chemicals
9. Sources of Indoor pollution Efficient insulation
Bacteria
Molds and mildews
Viruses
animal dander and cat saliva
plants
house dust
Mites
Cockroaches
pollen
10. Effects on the environment Acid rain
Ozone depletion
Global warming
In human population- respiratory problems, allergies, strengthens lugs, and a risk for cancer
11. Acid rain contains high levels of sulfuric or nitric acids
contaminate drinking water and vegetation
damage aquatic life
erode buildings
Alters the chemical equilibrium of some soils
13. Strategies Air Quality Management Plan
Development of new technology- electric cars, cleaner fuels, low nitrogen oxide boilers and water healers, zero polluting paints, less polluting BBQ lighter fluids
Use of natural gas
Carpooling
Follow the laws enacted
14. Urban Emissions
15. Role of Engines and Fuel Different engines and fuel combinations give out different emissions in different quantities.
Some engines have catalysts which effectively remove part of the harmful gases.
16. Catalytic Converters and Particle Traps Catalytic converters can be fitted to cars to reduce NOx emissions.
CO + HC + NOx H2O + N2 + CO2
Platinum Honeycomb
Particle traps can be used to reduce PM10 and NOx, but the effectiveness is severely reduced if the fuel the vehicle burns has a high sulphur content.
The major target in the battle for cleaner cities is diesel.
18. STRATEGIE The Clean Air for Europe (CAFE) approach:
Based on scientific knowledge
Using best available, quality-controlled real-world data
With close involvement of stakeholders:
Project future emissions and air quality resulting from full implementation of current EU legislation
Explore scope and costs for further measures
Analyze cost-effective policy scenarios
Estimate benefits of policy scenarios
21. Particulate Matter (PM ) Pollution
22. Ground level ozone
23. Multi-pollutant/multi-effect analysisfor identifying cost-effective policy scenarios
30. Expected benefitsEmission of road transport sector in Europe
31. Expected benefits(All sources in France) - 43% NOx between 2001 and 2010
- 37% COV between 2001 and 2010
programme of réduction 2003-2010
(simulations by Prév’air) :
duration of exposition to threshold (180µg/m3) divided by 5
exposition to concentrations higher than 120µg/m3 divided by 2
32. Surveillance de la pollution : les « réseaux »
33. Surveillance de la pollution : les alertes