A study has been conducted to assess the noise quality in ambient air of Dewas industrial area of Madhya Pradesh, India. Total nine locations were selected in Dewas industrial area for ambient air quality monitoring during different four quarters from April 2019 to March 2020. The noise data were collected from different monitoring locations at different time in order to assess the changing noise level at sites. Data collected during day time (6 AM to 10 PM) and night time (10 PM to 6 AM) at the all monitoring locations. All noise monitoring was done as per standard guidelines followed by Central Pollution Control Board which complying IS 9989: 1981. All results were compared with standard limits prescribed in Noise Pollution (Regulation and Control) Rules (2000).Noise level found within limit of standard of noise level 75 dB (A) Leq in day time and 70 dB (A) Leq in night time as per ambient noise rule (2000) for industrial area during this study. The main sources of noise pollution in Dewas industrial area, mainly are industry machines, pump sets, horns, and ill noise.
