Fine aerosol particles are a major contributor to visibility impairment (Blue Ridge Mountain area in the U.S. Category %o bext Scattering due to gases 5.0 Scattering due to dry particles 49.1 Scattering due to particle bound water 43.1 Absorption due to gases 0.3 Absorption due to particles 2.5Fine aerosol particles are a major contributor to visibility impairment (Blue Ridge Mountain area in the U.S.) Category % bext Scattering due to gases 5.0 Scattering due to dry particles 49.1 Scattering due to particle bound water 43.1 Absorption due to gases 0.3 Absorption due to particles 2.5