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Indoor and Built Environment, Vol. 9, No. 3-4, 233-236 (2000)
DOI: 10.1177/1420326X0000900313

Formaldehyde in Occupied and Unoccupied Caravans in Australia

P. Dingle

School of Biological and Environmental Science, Murdoch University, Murdoch, W.A., Australia

R. Tan

School of Biological and Environmental Science, Murdoch University, Murdoch, W.A., Australia

C. Cheong

School of Biological and Environmental Science, Murdoch University, Murdoch, W.A., Australia

A study of 132 unoccupied and 60 occupied caravans was conducted to determine levels of formaldehyde and factors which may affect these levels. Repeat monitoring was carried out 6 months later in 50 of the occupied caravans. A questionnaire was also used to assess po tential factors associated with the recorded levels. Mean formaldehyde levels of 100 ppb in unoccupied caravans and 29 ppb in occupied caravans were recorded. A nega tive correlation was found between formaldehyde levels and the age of caravans. There were significant seasonal differences in formaldehyde levels measured, with high er levels recorded in winter.

Key Words: Formaldehyde • Caravans • Exposure levels


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