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CH3041
SURFACE ENRICHMENT
• Low volatility metals volatilised through
volcanic output or biological processes (Hg) will concentrate on the outside surface of
aerosol particles.  - surface enrichment
• Small pollutant aerosol particles are part of the PM10 (Particulate Matter < 10 mm) range of respirable particles and are easily adsorbed into the lungs.  (changing to PM2.5)
• The quantity of PM10 aerosol particles in a sample of air may be measured using a cyclone elutriator which mass/size selects
a range of particles to be filter collected.