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Particle size distribution (Granulometry)

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Zirconium praseodymium yellow zircon
airborne fraction: MMAD = 22.79 µm (distribution fitted to cascade impactor data).
Geometric standard deviation of MMAD: GSD = 3.83
The particle size distribution of the pigment Zirconium praseodymium yellow zircon was determined using a MALVERN laser diffraction equipment (Béltran 2013). The size distribution was calculated using the MIE theory in order to interpret the light scattering signal collected by the detectors.
The following values were calculated assuming that the particles are spherical:
d10 = 3.3 µm
d50 = 9.6 µm
d90 = 21.8 µm

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