Write about the Controlling Vehicular Air Pollution : A case
study of Delhi
Answers
In the year 1990, Delhi ranked fourth among 41 most polluted cities of the world. In response to PIL (Public Interest Litigation), Supreme court of India sent orders to Delhi government to take appropriate actions.
In response, several measures were taken by Delhi Government. By 2002, all the city buses were converted to run on CNG (compressed natural gas). CNG is advantageous over other fuels because it is economic, burns efficiently and is adulteration proof fuel.
According to new fuel policy, the norms are set to reduce sulphur and aromatic content of petrol and diesel. Another provision is upgradation of engines. For this, Bharat stage emission standards (BS) are set.
These standards are equivalent to Euro norms and have evolved on similar lines as Bharat Stage II (BS II) to BS VI from 2001 to 2017
Note that, in 2001, Bharat stage II emission norms were set for CNG and LPG vehicles. It stipulates that emission of sulphur be controlled at 50 ppm in diesel and 150ppm in petrol. Aromatic hydrocarbons should be just 42% in concerned fuel. The aim is to reduce sulphur emission to 50ppm in petrol and diesel along with aromatic hydrocarbons to 35%.
Government of India directly adapted BS VI in the year 2018, skipping BS V. These efforts decreased the levels of CO2 and SO2 in Delhi.
Colder weather and stagnant winds, trap smoke from various sources like firecrackers, burning crop stubbles, lit garbage and road dust. Citizens suffered breathlessness, chest muscle contraction, irritation in eyes, asthma and allergy. Administration took certain measures like closing educational institutions, suspending of construction or demolition work, undertaking vacuum cleaning of roads etc. Even Badarpur thermal power plant was temporarily closed down. Do you think mere setting standards is not enough? We must encourage means like car pooling and use of public transport.
Answer:-
In the year 1990, Delhi ranked fourth among 41 most polluted cities of the world. In response to PIL (Public Interest Litigation), Supreme court of India sent orders to Delhi government to take appropriate actions.
In response, several measures were taken by Delhi Government. By 2002, all the city buses were converted to run on CNG (compressed natural gas). CNG is advantageous over other fuels because it is economic, burns efficiently and is adulteration proof fuel.
According to new fuel policy, the norms are set to reduce sulphur and aromatic content of petrol and diesel. Another provision is upgradation of engines. For this, Bharat stage emission standards (BS) are set.
These standards are equivalent to Euro norms and have evolved on similar lines as Bharat Stage II (BS II) to BS VI from 2001 to 2017
Note that, in 2001, Bharat stage II emission norms were set for CNG and LPG vehicles. It stipulates that emission of sulphur be controlled at 50 ppm in diesel and 150ppm in petrol. Aromatic hydrocarbons should be just 42% in concerned fuel. The aim is to reduce sulphur emission to 50ppm in petrol and diesel along with aromatic hydrocarbons to 35%.
Government of India directly adapted BS VI in the year 2018, skipping BS V. These efforts decreased the levels of CO2 and SO2 in Delhi.
Colder weather and stagnant winds, trap smoke from various sources like firecrackers, burning crop stubbles, lit garbage and road dust. Citizens suffered breathlessness, chest muscle contraction, irritation in eyes, asthma and allergy. Administration took certain measures like closing educational institutions, suspending of construction or demolition work, undertaking vacuum cleaning of roads etc. Even Badarpur thermal power plant was temporarily closed down. Do you think mere setting standards is not enough? We must encourage means like car pooling and use of public transport.