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Noise Pollution in Mumbai Metropolitan Region (MMR):

An emerging Environmental Threat

MUMBAI METROPOLITAN

REGION (MMR)

Introduction

  • Geographical Area : 6355 sq. km.
  • Population (2011) : 26 million
  • Municipal Corporations :

Mumbai, Navi-MumbaI, Thane, Panvel, Bhiwandi-Nizampur,

Kalyan-Dombivali, Mira-Bhayander, Vasai-Virar and Ulhasnagar 

SOURCES

SOURCES

Methodology

METHODOLOGY

NOISE MONITORING

MONITORING

Commercial Area

  • 36 locations monitored
  • LDN ranges from 65 - 100 dBA across commercial zones of MMR
  • Noisiest Com. Zone : Ulhasnagar
  • Least noisy Com. Zone: Bhiwandi-Nizampur

Results

Industrial Area

  • 35 locations monitored
  • Noise levels over 24 hrs (LDN) ranges from 60-95 dBA across industrial zones of MMR
  • Noisiest Ind. Zone : Bhiwandi-Nizampur
  • Least noisy Ind. Zone : Navi-Mumbai

Silence Zone

  • 34 locations monitored
  • LDN during Working days: Lowest at Navi Mumbai (71.6  dBA) & Highest at Mira-Bhayandar (84.7 dBA) 
  • LDN during Non-working days: Lowest at Ulhasnagar (67.9 dBA) & Highest at Mira-Bhayandar (84.8 dBA)

Results (contd.)

Residential Area

  • 48 locations monitored
  • LDN during Working days: Lowest at Ulhasnagar (74.9 dBA) & Highest at Mira – Bhayander (87.3 dBA)
  • LDN during Non-Working days: Lowest at Panvel (74.9 dBA) & Highest at Ulhasnagar (87.3 dBA)

Analysis

Analysis

Noise Exceedance Factor

Noise Levels Across MMR

Overall Leq Across MMR

NEF more than threshold value of 1 depicts degree of violation of noise permissible limits

  • Worst affected - Silence zone with highest NEF during day and night time
  • Clear indication of unplanned, congested and unruly developmental and commercial activities

Need of the Hour

Publication

Thank you

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