References

1. Ph.D Thesis, Imperial College of Science and Technology, University of London Significance and Behaviour of Polycyclic Aromatic Hydrocarbons in Urban Ambient Air Baek, S.O.
2. Proc. of 2nd Int'l Conf. on VOCs in the Environment Volatile Organic Compounds - a European Overview Fisk, D.J.
3. Proc. of Int'l Conf. on VOCs in the Environment Urban Air Quality Management and Research in relation to VOC in the UK Harrison, R.M.
4. Expert Panel on Air Quality Standards on Ozone UK DOE
5. Expert Panel on Air Quality Standards on Benzene UK DOE
6. Expert Panel on Air Quality Standards on 1,3-butadiene UK DOE
7. Expert Panel on Air Quality Standards on Sulpher Dioxide UK DOE
8. Expert Panel on Air Quality Standards on Particles UK DOE
9. Expert Panel on Air Quality Standards on Nitrogen Dioxide UK DOE
10. Expert Panel on Air Quality Standards on Carbon Monoxide UK DOE
11. WHO Pub. European Ser. no.23 Air Quality Guidelines for Europe WHO