Linkages with other issues
The air issues associated with SO2 are:
- Acid Rain (acidification caused by deposition of acid and sulphate transformation products)
- Smog (SO2 contribution to secondary formation of fine PM)
- Visibility/Regional Haze (SO2 contribution to secondary formation of fine PM)
- HAPs (potential adverse health effects from direct exposure to SO2 and/or its acid and sulphate transformation products makes SO2 a HAP in its own right)