http://www.legislation.gov.uk/ssi/2001/224/schedule/7/paragraph/6/made
The Air Quality Limit Values (Scotland) Regulations 2001
Air pollution
Health and safety requirements
Sulphur dioxide
King's Printer for Scotland
2012-09-14
ENVIRONMENTAL PROTECTION
These regulations are made in the implementation in Scotland of Council Directive 96/62/EC on ambient air quality assessment and management, and Council Directive 99/30/EC relating to limit values for sulphur dioxide, nitrogen dioxide and oxides of nitrogen, particulate matter and lead “the relevant pollutants” in ambient air.
The Air Quality Limit Values (Scotland) Regulations 2001
The Air Quality Limit Values (Scotland) Amendment Regulations 2002
The Air Quality Limit Values (Scotland) Regulations 2001
The Air Quality Limit Values (Scotland) Amendment Regulations 2002
The Air Quality Limit Values (Scotland) Regulations 2001
The Air Quality Limit Values (Scotland) Amendment Regulations 2002
The Air Quality Limit Values (Scotland) Regulations 2001
The Air Quality Limit Values (Scotland) Regulations 2003