NOISE POLLUTION.pptx
- 2. Measurement device : Sound level meter
Measurement unit : decibel (dB)
Normal sound : 1 dB – 140 dB
Pain starts : 120 dB – 140 dB
- 3. Foundation : on 21 February 2006
Type : NGO
Headquarters : Mumbai
- 6. Lower the volume
Go green by planting trees
Better maintenance.
- 7. Location : Melbourne , Australia
Length : 22 km
Opened : on October 1999