Noise and air pollution are hazards to the ambient environment and a cause of concern due to bursting of fire crackers during Deepawali. It is, therefore, necessary to conduct ambient noise and air quality monitoring during this festival to understand the level of pollution and correlate with the effectiveness of different abatement programs.

The Government of NCT of Delhi had implemented odd-even scheme from 1st to 15th January, 2016 with the objective of reducing air pollution in Delhi. The odd-even scheme applied to four wheeler Passenger/Private Cars.

The IIT Kanpur study makes it clear the entire NCR contributes to Delhi's alarming air pollution levels and even with all control measures implemented this year on, Delhi will not achieve the desired PM levels by 2023 but can halve the hazardous PM levels.

Of the total 85 cities covered for calculation of AQI during October 2015, 48 cities revealed good air quality, 62 cities revealed satisfactory air quality, 33 cities revealed moderate air quality, 8 cities indicate poor air quality, 3 cities (Delhi, Devangere, Karnataka and Lucknow, Uttar Pradesh) cities showed very poor air quality and 2 city