[ad_1]
Lab test emissions of CNG vehicles are actually much higher.CNG light goods vehicles are spreading 14.2 percent more pollution.Commercial CNG cars are more harmful than private cars.
New Delhi. Poor air quality is becoming a serious problem in cities. The main reason for this is said to be pollution caused by vehicles. Many efforts are being made continuously to improve the air quality, but it does not seem to bring much change. To improve the air quality index, BS-IV and then BS-VI emission norms were introduced for vehicles in the last 10 years. BS-VI vehicles cause up to 85% less pollution than BS-IV, but these figures now seem to be true only on paper. Especially for CNG vehicles, which are popular for causing less pollution, this seems to be proving completely wrong.
According to a new study by the International Council on Clean Transportation (ICCT), despite passing the pollution control (PUC) test, many vehicles running on Indian roads are emitting more pollution than their emission standards. Many cities in India are struggling with poor air quality. At the same time, the ever-increasing number of vehicles on the roads is increasing this problem even more.
Checking of emission levels of vehicles
The study was conducted in Delhi and Gurugram as part of The Real Urban Emissions (TRUE) initiative. The study used remote sensing technology to measure real-world emissions from vehicles to determine the actual emissions they are emitting. The study found that vehicle emissions are much higher than what is recorded in lab tests.
For better results, it was tested for 65 days at 20 different testing spots. Most of the testing points were in Delhi and some in Gurugram. More than 1,11,000 valid measurements have been captured in this campaign. In which nitrogen oxide (NOX), carbon monoxide (CO), hydrocarbons (HC), and ultraviolet smoke emissions, a proxy for particulate matter (PM), etc. were examined. Two-wheelers, three-wheelers, private cars (PCs), taxis, light motor vehicles and buses were included in this test.
Important revelations made in the study
The study concluded that nitrogen oxide (NOx) emissions from BS-VI private cars are 81 percent less than BS-IV cars. Similarly, BS-VI buses produce 95 percent less NOx than BS-IV buses. Upgrading to BS-VI is appropriate for normal vehicles. But the emissions from CNG vehicles have raised questions on this.
Questions raised on CNG vehicles
The conclusions drawn about CNG vehicles in this study are surprising. Generally, CNG vehicles are known for higher mileage and lower emissions. The National Green Tribunal (NGT) has also always emphasized on running CNG vehicles in Delhi-NCR. The study found that CNG-powered vehicles emit high levels of nitrogen oxide (NOx). Commercial vehicles contribute more to pollution than private vehicles. BS-6 CNG taxis and light goods vehicles are emitting 2.4 and 5 times more nitrogen oxide respectively than private vehicles.
It was found that BS-VI CNG vehicles, which include three-wheelers, private cars, taxis and buses, are emitting more nitrogen oxides in the rear world than in lab tests. Class-2 light goods vehicles were found to be emitting 14.2 times more than their NOx limit in laboratory tests. Therefore, relying only on lab tests is not enough to improve air quality.
The number of CNG vehicles is increasing
If we look at it, most car companies are expanding their CNG portfolio. Maruti Suzuki, the country’s largest car manufacturer, has the most models of CNG cars. Tata Motors is also selling its hatchback, sedan and SUV models in CNG. Many models used for the fleet of Maruti, Hyundai and Toyota come in CNG. In such a situation, CNG vehicles spreading more pollution than the standard can become a challenge in improving air quality.
Tag: auto news, CNG Car
first published : September 2, 2024, 5:23 PM IST
[ad_2]
