1. Expert Panel on Air Quality Standards. Benzene;of Environment, Department,1994
2. Draft revisions to air quality guidelines;World Health Organisation,1996
3. Quality of Urban Air Review Group (QUARG). First report: urban air quality in the United Kingdom,1993
4. Air pollution in the UK;Technology, A.E.A.,1995
5. Major sources of benzene exposure;Wallace, L.A.;Environ Health Perspect,1989