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Air pollution may be due to:

  • particulate matter by different sizes
  • odour
  • haze
  • gaseous substances

These materials can be measured by various monitors using samples taken at the site and measured by:

  • local sensors/monitors
  • light absorption and refraction
  • human observation (organoleptic observation) by trained observers

Noise pollution involves sound measurement of:

  • continuous noises
  • impact frequencies
  • peak frequency identification
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13y ago
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14y ago

Noise is measured in decibels (across the logarithmic scale) using a Sound level meter.

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Q: What is the name of the instrument used to measure noise pollution?
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