MINISTER OF STATE IN THE MINISTRY OF ENVIRONMENT AND FORESTS (SHRI NAMO NARAIN MEENA)
(a)&(b) Ambient air quality data for the years 2003 and 2004, the years after the introduction of CNG, at Delhiâs busiest traffic intersection at ITO indicate reduction in the levels of pollutants like Suspended Particulate Matter (SPM), Respirable Suspended Particulate Matter (RSPM) and Carbon Monoxide (CO). However, the level of Oxides of Nitrogen (NOx) and Particulate Matter still exceed the ambient air quality standards. This could be attributed to the rise in vehicle population.
(c)&(d) Pursuant to the Honâble Supreme Courtâs directions , 16 most polluted cities of the country have prepared action plans to improve the ambient air quality. Change over to cleaner fuels like Compressed Natural Gas (CNG)/Liquefied Petroleum Gas (LPG) etc. is one of the measures contemplated in the action plans.