What are the common types of environmental noise?
In our surroundings, there are different sources emitting various types of environmental noise.
Type of Environmental Noise Sources |
Examples
|
---|---|
Transportation |
aircrafts, trains, road vehicles, vessels |
Industrial buildings | factories - machineries, air-conditioning systems |
Commercial buildings | office buildings - air-conditioning systems restaurants - air-conditioning systems, kitchen ventilating systems |
Construction sites | site formation (e.g. excavation), piling, road work, demolition, renovation |
Domestic buildings | mahjong playing, hi-fi, musical instruments |
Public places | open markets, streets, parks |
Products | intruder alarms of buildings and motor vehicles |
[Animation of some environmental noises in Hong Kong]
The following diagram demonstrates the sound pressure levels of various types of environmental noise. Please click on the demo button to appreciate the noise levels from these sources.
[Chart of typical noise levels from various sources]
Hong Kong, like many metropolitan cities in the world, experiences various noise problems. There is no quick fix to the problems but the Government is committed to doing all it can within the constraints to improve the noise environment of Hong Kong.