Taking up the issue of noise pollution from aircraft during its take off and landing and also during its movements at airports, the National Physical Laboratory of the Council of Scientific and Industrial Research (CSIR) , the Delhi International Airport Ltd (DIAL) and the Airport Authority of India have agreed to work together for 'noise mapping' of all airports across the country and suggest measures to reduce its impact.

Noise-mapping refers to the scientific method to measure existing and projected noise levels in a particular area.  Noise mapping is usually done by calculating noise levels in different scenario and it helps in preparing action plans to mitigate it.

CSIR-NPL director, D K Aswal said that continuous exposure to noise above 85 decibels was harmful to hearing as per guideline of OSHA (Occupational Safety and Health Administration). According to documented research, noise does not have to be that loud to lead to physiological changes in blood pressure, sleep, digestion and other stress-related disorders.

Continuous high-intensity sound impacts the health of a human being. The environment ministry has fixed noise standards within the boundary for various airports as the ones applicable for 'industrial areas'.

The issue of noise pollution around airports was came to light in January when the National Green Tribunal (NGT) heard pleas filed by the residents of Vasant Kunj and Bijwasan in South Delhi. These residential areas are in close proximity to the Indira Gandhi International Airport (IGIA) in the Capital.