1. AEAT-1806, 1999. Instruction manual: UK smoke and sulphur dioxide network. Report AEAT-1806. Available from WWW at: http://www.aeat.co.uk/netcen/airqual/reports.
2. AEAT-0740, 2001. Operation and management of the UK acid deposition monitoring network: data summary for 2000. A report produced for the Department for the Environment, Food and Rural Affairs, AEAT/ENV/R/0740.
3. The Lognormal Distribution;Aitchison,1957
4. On frequency distributions of air pollutant concentrations;Bencala;Atmospheric Environment,1976
5. Statistical distributions of daily and high atmospheric SO2-concentrations;Berger;Atmospheric Environment,1982