Real-world vehicle emissions higher than lab tests; CNG not as clean as believed

A study by The Real Urban Emissions (TRUE) Initiative, using remote sensing technology in Delhi and Gurugram, has revealed that real-world vehicle emissions are much higher than laboratory tests indicate. Conducted with the International Council on Clean Transportation (ICCT), the study found that CNG vehicles emit high levels of nitrogen oxides (NOx), challenging the perception of CNG as a “clean” fuel. While BS-VI cars and buses emit significantly less NOx than their BS-IV counterparts, CNG…