Saturday 24 September 2022



Sustainable living is a norm and a buzz word these days. To have a safe and a green planet is the main objective of all these. Major step towards these  is Reduce, Reuse and Recycle -

Reduce means to cut back on the amount of trash we generate. Reuse means to find new ways to use things that otherwise would have been thrown out. Recycle means to turn something old and useless (like plastic milk jugs) into something new and useful (like picnic benches, playground equipment and recycling bins).
In spite of these  green steps there is an another block  towards sustainable development in the form of Pollutants. Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants damage the quality of air, water, and land. Pollution directly affect human environment via increased emission of various gases depleting of ozone layer that repel high frequency ultraviolet radiations. 
Here we look into air pollution caused by vehicles and the steps taken to curb it :
 Vehicular pollution or  automobile air pollution are emissions from cars and other vehicular traffic consisting chiefly of carbon monoxide, nitrogen oxides, unburned gasoline, carbon dioxide and lead.
Burning excess amounts of gasoline and diesel fuel creates harmful byproducts like nitrogen dioxide, carbon monoxide, hydrocarbons, benzene, and formaldehyde. In addition, vehicles emit carbon dioxide, the most common poisonous greenhouse gas.
Air pollution can damage crops and trees in a variety of ways. Ground-level ozone can lead to reductions in agricultural crop and commercial forest yields, reduced growth and survivability of tree seedlings, and increased plant susceptibility to disease, pests and other environmental stresses (such as harsh weather).
Vehicle emission contribute to the formation of ground level ozone - smog., which can trigger health problems such as aggravated asthma, reduced lung capacity, and increased susceptibility to respiratory illnesses, including pneumonia and bronchitis .
These specify the effects of vehicular pollution. In Chennai to minimise and to reduce the vehicular emission. Every vehicle is insisted to undergo pollution check at the time of the renewal of their car/ two wheeler insurance or once in  a year.
What is PUC?
PUC  is a test that assesses the emission of a vehicle and checks if it follows the standard pollution regulation. It confirms the percentage of carbon emission, that is the amount of pollution your vehicle may contribute.

PUC is a pollution under control certificate is an approval that emission from your vehicle is under control and as per the pollution norms and are not harmful to the environment. The smoke that emits from the vehicle have a chance of polluting the air if left unchecked. That's why PUC is initiated to curb the pollution. Certificate is provided after the test. A  green sticker is also placed on the vehicle. All vehicles on Indian roads are mandated to carry a valid PUC certificate.
For a new vehicle , PUC will be provided by the dealer and it is valid for an year.
After an year, one has to take their vehicle to the nearest emission test center to obtain the renewed PUC. The operator will check the emission levels of the vehicle and certify. The government has authorised  approximately  248 private emission testing centers through out Tamil Nadu. It  is an official document issued by the government after the thorough verification of the vehicle's emission levels. PUC certificate is valid throughout the country.

With a PUC possession you can do your bit to save the environment by keeping your car/ two wheeler  emission levels in check. 
Do get a PUC for your vehicle and  place a green step towards a pollution free space.

(This blogpost is  a part of Blogchatter's CauseAChatter)

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