definition of terms(TSP, PM10, PM2.5, soot, aerosols,
colloids);
(overview).
Particulates and human health: intake of particles by
average person.
Speculations on particles and
asthma et al..
idealized particle distributions.
By size, numeric
peak size range < surface area peak size range < total
volume peak size range.
Composition of
particles reflect their source; i.e. crustal material (dust
from rocks) vs. acid aerosols and metals from energy use
Anthropogenic sources vary but are usually dominated by
fossil fuels. Old
incinerators were
also a major source.
Volcanoes can be a
major source of sulphate.
