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The Aurora Nephelometer is a visibilty monitoring device which uses the scattering of light to determine visibility, particularly the effects of blasting on air quality and visibility.

It is available in three specific units, measuring slightly different dust sources:

  • Blue LED lightsource for fine and ultra fine particulates (wood fires, automobiles)
  • Green LED lightsource for common visibility
  • Red LED lightsource for large particulates (e.g. pollen, sea salt)

The Nephelometer is used as a standard part of air quality monitoring networks in many parts of the world, including state EPAs in Australia and the U.S.A.

As it measures the scattering of light it can detect the distance the naked eye can see (in km). This monitoring is extremely useful when reporting data to the general public who can relate bad air quality to visible distance more than traditional parts per billion or Mg/m3(pollution).

Aurora 3000 three wavelength nephelometer with backscatter