2. What is air pollution
■ Air pollution is a mixture of solid particles and gases in the air. Car emissions,
chemicals from factories, dust, pollen and mold spores may be suspended as
particles. Ozone, a gas, is a major part of air pollution in cities. When ozone
forms air pollution, it's also called smog.
■ Some air pollutants are poisonous. Inhaling them can increase the chance you'll
have health problems. People with heart or lung disease, older adults and
children are at greater risk from air pollution. Air pollution isn't just outside -
the air inside buildings can also be polluted and affect your health
3. What are air pollutants
■ These pollutants are carbon monoxide, lead, nitrogen oxides, ground-level ozone, particle
pollution (often referred to as particulate matter), and sulfur oxides
■ The common air pollutants are: Particulate matter (PM10 and PM2. 5) Ozone (O3) Nitrogen
dioxide (NO2)
■ Air pollution is the presence of substances in the atmosphere that are harmful to the health of
humans and other living beings, or cause damage to the climate or to materials. There are many
different types of air pollutants, such as gases, particulates, and biological molecules.
4. Indian and European pollution standards
■ Vehicle emission norms were introduced in India in 1991 for petrol and in 1992 for diesel vehicles.
Since 2000, Euro norms are followed in India under the name Bharat Stage
Emission Standards for four wheeled vehicles. Bharat stage III norms have been enforced across
India since October 2010.
■ European emission standards are vehicle emission standards for exhaust emissions of new
vehicles sold in the European Union and EEA member states. The standards are defined in a
series of European Union directives staging the progressive introduction of increasingly
stringent standards.
5. Steps to reduce pollution by different
countries
■ Implement cleaner methods of transportation: Emissions from vehicles are a large driving factor in
air pollution. ...
■ Invest in energy efficient power generation: Another solution cities and governments can take is to
provide energy efficient power
■ compulsory PUC (pollution under control) certificate of petrol driven vehicles which test for
carbon monoxide and hydrocarbon. (b) permission to use only pure diesel with a maximum of 500
PPM Sulphur as fuel for vehicles. (c) use of non polluting compressed natural gas CNG only as
fuel by buses and trucks
