Similar term(s): sulfate, sulphur oxides.
Sulphate is a salt of sulphuric acid. It refers both to the
SO42- anion and to any compound that contains this
In air, sulphates occur as microscopic particles (aerosols) resulting from the
combustion of fossil fuel and biomass that contain sulphur. They increase the
acidity of the atmosphere and form acid rain
Acid rain - Sulphur dioxide (SO2)