New Delhi, June 21 -- Amid rising concerns over pollution, Congress leader Jairam Ramesh has called for improvement in National Clean Air Programme (NCAP), saying "one of the biggest blunders" has been the dilution of its focus to measure and monitory only PM10 rather than PM2.5.

He also said that there has been underutilisation of funds under the programme.

Jairam Ramesh said PM2.5 pollution is the cause of the thousands of deaths.

"The National Clean Air Program is ill-conceived in many ways. One of the biggest blunders has been the dilution of its focus to measure and monitory only PM10 (particulate matter of less than 10 mm diameter) - rather than PM2.5 which is the cause of the thousands of deaths we see annually," he said in a po...