Question

The Air (Prevention and Control of Pollution) Act came into force in ____A___ and later amended in ____B____ to include ______C___ as an air pollutant.

• A. A - 1987, B - 1991, C - noise
• B. A - 1981, B - 1987, C - noise
• C. A - 1981, B - 1986, C - sound waves
• D. A - 1982, B - 1987, C - sound waves

Answer 1

The correct option is B A - 1981, B - 1987, C - noise

The Air (Prevention and Control of Pollution) Act came into force in 1981 and later was amended in 1987 to include noise as an air pollutant. It is an Act of the Parliament of India to control and prevent air pollution in India.

Sound vibrations need a medium to travel. Air is the most common medium through which the sound waves travel, so it is most practical to consider noise as an air pollutant.

Noise is an undesirable sound, especially one that is loud or unpleasant or that causes disturbance. Noise causes psychological and physiological disorders such as sleeplessness, increased heart beat and altered breathing patterns in humans. A brief exposure to sound more than 150 dB may permanently impair the hearing ability by damaging the tympanum.