PM1.0 Threatens New Delhi, DU and JNU Researchers Point Out

PM1.0 found in the haze spread across New Delhi from November 6th to 11th is a cause of concern from a medical point of view. DU and JNU researchers say that enough mechanisms are not available in Delhi-NCR to study it.

New Delhi skies observed a visible and harmful haze from 6th November to 11th November. Researchers from Delhi University and Jawaharlal Nehru University said that the said haze -caused by moisture in the air and the winter- had a high concentration of PM1.0, and there are not enough means available in the capital to study it.

SK Dhaka of Delhi University’s Rajdhani College and AP Dimri of the School of Environmental Science at Jawaharlal Nehru University found that these particles were of high density- ranging up to 250-280 micro gm/m3 during the abovementioned six days.

SK Dhaka told the Times of India, “Such observations are not made with the routine measurement of Delhi Pollution Control Committee and CPCB. High values of PM 1.0 is a serious issue as it may penetrate the bloodstream through the lungs and would be dangerous for health. We need fine-scale data to be analyzed to provide accurate information about the seasonal variability especially on sub-micron order.”

Purple air sensors were used at Dwarka which provide highly accurate data on a finer scale with a range of 1 micron. “We also used optical smart sensor popularly known as CUPI (Compact and Useful PM2.5 Instrument) developed by Nagoya University, Japan, and Panasonic. Both sensors have shown quite high values of PM2.5 touching 1,000-micron gm/m3,” SK Dhaka added.

Levels of pollutants in the atmosphere saw a sharp rise recently, with air quality of the National Capital Region- the region encompassing the entire NCT of Delhi, and several districts surrounding it from the states of Haryana, and Uttar Pradesh- reaching hazardous levels.

The researchers insist that such high values of PM 1.0 are a cause of concern medically and more observations are required to assist medical doctors in their studies.

Kashvi Raj Singh


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