The regional government in Delhi has drafted regulations making it mandatory for all large construction sites in the city to install air quality monitoring equipment.
Airborne dust is one of the main sources of pollution in Delhi. A 2018 joint study by the Energy & Resources Institute and the Automotive Research Association of India found that construction contributed 25% of PM2.5 and 17% of PM10 pollution in the city during the winter season.
‘PM2.5’ refers to particulate matter in which the particles are less that 2.5 micrometres in diameter; PM10 particles are less that 10 micrometres in diameter.
In 2020 the Delhi government published guidance containing 14 measures that must be followed at construction sites to combat dust pollution.
The new regulations currently under consideration would require all construction sites measuring 20,000 square metres or more to install three air quality monitors to record dust emissions on a continuous basis.
The Construction Index, 20-09-22