Which gas is responsible for air pollution by vehicles?

Carbon monoxide- This odorless, colorless gas is formed by the combustion of fossil fuels such as gasoline. Cars and trucks are the source of nearly two-thirds of this pollutant. When inhaled, CO blocks the transport of oxygen to the brain, heart, and other vital organs in the human body.

Which gas is checked in PUC?

5, NOx. While all European and American cities, along with most Asian cities, use technology to track NOx, PM, carbon monoxide (CO) and hydrocarbons (HC), Delhi’s PUC centres are equipped to measure only the latter two pollutants in the case of petrol vehicles.

Which gases are emitted from vehicles?

Motor vehicle exhaust emissions are known to contain carbon monoxide , nitrogen oxides , hydrocarbons , suspended particulate matter, and a small amount of sulfur dioxide .

What pollutants are in vehicle emissions?

The major pollutants released as vehicle/fuel emissions are, carbon monoxide (CO), nitrogen oxides (NOx), photochemical oxidants, air toxics, namely benzene (C6H6), aldehydes, 1,3 butadiene (C4H6), lead (Pb), particulate matter (PM), hydrocarbon (HC), oxides of sulphur (SO2) and polycyclic aromatic hydrocarbons (PAHs).

What causes car air pollution?

Since the engines are consuming fuel and air and create heat in the combustion process, nitrogen from the air can be transformed into nitrogen oxides which are reddish brown gases that irritate the lungs and eyes. Pollutants emitted directly from vehicles are not the only cause for concern.

What causes vehicle pollution?

Burning 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 greenhouse gas. The good news is that you can reduce pollution from motor vehicles.

What is PUC exam?

The Pre-University Course or Pre-Degree Course (PUC or PDC) is an Intermediate Course (which is known as 10+2) of two years’ duration, refers to Class 11th and Class 12th and called as 1st PUC and 2nd PUC respectively in the PU Colleges or Junior Colleges and are conducted by state education institutions or boards in …

Is PUC certificate required for bike?

As per the Motor Vehicles Act 1988, it is mandatory to carry a PUC certificate while riding a two-wheeler on the roads. The two-wheeler insurance renewal demands an updated PUC certificate from the policyholder.

Which of the air pollutants are present in an auto exhaust gas?

The majority of vehicle exhaust emissions are composed of carbon dioxide, nitrogen, water vapor, and oxygen in unconsumed air. Carbon monoxide, unburned fuel, nitrogen oxides, and particulate matter such as mercury are also present in vehicle exhaust emissions in smaller quantities.