Pollution: The climate in and around the country’s capital Delhi has once again become poisonous. The biggest cause for concern is that vehicles running on CNG, which is used as an alternative fuel, are also spewing poisonous smoke. The reason for this is that motor vehicle emission norms are not being followed in Delhi and Gurugram. A study by the International Council on Clean Transportation (ICCT) claims that despite the implementation of the Bharat Stage (BS) 6 standard in Delhi-NCR, the amount of pollution caused by vehicles has increased significantly.
Pollution spreads despite implementation of BS6 standard
The study conducted by ICCT has analysed the real-world emissions of vehicles. The study was conducted in collaboration with the FIA Foundation under The Real Urban Emissions (TRUE) initiative. In this, emissions from over one lakh vehicles were tested at 20 locations in Delhi and Gurugram. Pollutants such as nitrogen oxides (NOX), carbon monoxide (CO) and hydrocarbons (HC) were measured in the study. It found that despite the implementation of Bharat Stage (BS) 6 standards, vehicle emissions were 1.5 to 14.2 times higher than the values measured in the laboratory.
The most polluting commercial vehicles
The study also revealed that the most commonly used commercial vehicles (taxis and light duty vehicles) cause more pollution than private vehicles. BS6 taxis and LGVs (Light Duty Vehicles) emit 2.4 and 5 times more NOx respectively than passenger cars. The study also found that CNG is considered a clean alternative fuel but it also emits relatively the highest amount of NOx.
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People should use electric vehicles and bicycles.
Amit Bhatt, director general of ICCT, said the study shows that real-world vehicle emissions differ significantly from laboratory results. He said the emission testing system in India needs to be overhauled and zero-emission vehicles need to be adopted quickly. FIA Foundation deputy director Sheila Watson raised questions about considering CNG as a clean alternative fuel and said the real solution for Delhi is not CNG but promoting electric vehicles, cycling and walking. Similarly, Anumita Roy Chowdhury of the Centre for Science and Environment also stressed the need to move towards electrification.
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