Real time ambient noise levels in 7 Metro cities during Deepawali 2011, 2012, 2013 and 2014

Real Time Continuous Ambient Noise Monitoring has been conducted at 35 locations in seven cities (Delhi, Mumbai, Chennai, Kolkata, Lucknow, Bangalore and Hyderabad) since 2011. Ambient Noise Level Trend in these seven cities on the occasion of Deepawali 23/10/2014, 03/11/2013, 13/11/2012 and 26/10/2011 along with data are presented in this statistics. 14 locations have decreasing trend or no change in trend especially in Banglore, Chennai, Hyderabad and Mumbai. Marginal variation is observed at 21 locations in Delhi, Kolkata and Lucknow in comparison to Deepawali, 2013.