List the sources of noise pollution in your surroundings.

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Hint The presence of harmful materials in the atmosphere is called pollution. Continuous exposure to very loud noises can cause many physical and mental impacts on humans and animals. The sounds that are not harmful to humans fall under the range of $70dB$. There are many sources of noise pollution around us.

Complete step by step answer
The sources of noise pollution are:
-Using loudspeakers for announcements and programs.
-Using the horns of vehicles unnecessarily.
-Bursting of crackers during festivals and other ceremonies.
-Operating heavy machinery for construction and many other purposes.
-The loud noise of landing and take-off of planes near the airport.
-The loud noise of trains and crowds in railway stations.
-The loud noise of machinery, fans, mills, compressors, generators, etc. in large factories.
-Playing television, music players, computers, stereo, etc loudly at home.
-Home appliances like mixer grinders, vacuum cleaners, lawnmowers, dishwashers, etc.
-Loud noises of traffic.

Additional information
Noise pollution will cause serious health hazards to humans as well as animals. Continuous exposure to loud noises can lead to permanent hearing disability. There can be many psychological effects that might lead to nervous disorders, high blood pressure, many neurological problems, etc. Our stress response is triggered by loud unnecessary noises. This will cause an adrenaline rush and increased blood pressure.

The various methods to reduce noise pollution are: watch television and other music systems at a reduced volume. Avoid the bursting of crackers having loud noise. Do not use horns unnecessarily. Heavy machinery can be kept within insulated walls in factories and industries. People who are workers exposed to loud noises can use noise-canceling headphones.