Noise pollution:
A loud unpleasant or unwanted sound is called noise.
Sources of noise pollution
- The sonic boom produced by air crafts, Jet plane is the extreme cause of noise pollution.
- Textile mills and printing presses, agricultural machines, defense equipments, transport vehicles, public address system, use of crackers on festive occasions. Operations such as blasting, crushing, construction work are other sources of noise pollution.
Effects of Noise Pollution
- It is harmful and causes psychological and physiological disorders in human beings.
- Exposure to extremely loud noise like explosion, sounds of jet plane or rockets damage ear drums; this may cause permanently impairing hearing ability.
- It also causes sleeplessness, increased heartbeat, headache, anxiety, stress, etc.
Prevention of noise pollution
- Use of loud speakers and amplifiers should be restricted to a fixed intensity and fixed hours of the day.
- Delimitation of horn free zones around hospitals, schools, etc.
- Noise producing industries, railway stations, aerodromes should be located away from human settlements.
- Noisy machines should be installed in sound proof chambers.
- Motor vehicles noise can be reduced by planting many rows of trees.
- Occupational exposure can be reduced by using ear muffs or cotton plugs.
