Directorate of Information & Publicity
Government of NCT of Delhi

DIRECTORATE OF INFORMATION AND PUBLICITY
GOVERNMENT OF NCT OF DELHI
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New Delhi : 02/12/2016

• Delhi Govt reviews the prevailing air quality & foggy condition levels 

Environment Minister Mr Imran Hussain on Friday reviewed the prevailing ambient air quality of Delhi in a meeting with the officers of Environment Department and Delhi Pollution Control Committee.

The Minister was briefed about the influence of multiple factors such as metrological parameters specially wind speed, wind direction, humidity and solar index on air in Delhi, since the national capital is facing Foggy conditions at present.

(PLEASE FIND BELOW THE COMPARISON CHART OF PM 2.5 & PM 10 AIR POLLUTION LEVELS OF LAST 10 DAYS OF 2015 & 2016)

The Environment Department informed that in winters, particularly when Fog/Mist develops in the city, a general perception prevails that the air quality worsens, whereas the fact is that fog and smog are two separate environmental phenomena.

Fog is a collection of water droplets suspended in the atmosphere in the vicinity of the earth's surface that affects visibility. Specifically, the fog reduces visibility below 1 kilometer (or 0.62 miles). It was also observed that the most common form of fog,  known as radiation fog, typically occurs on clear nights as the earth's surface cools moist air immediately above it.  Analysis of the data of different pollutants shows that no major difference has been observed in the concentration of Particulate Matter in last week when compared to corresponding week in the Year 2015.

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