A survey of X-ray film processing departments revealed the main airbor
ne contaminants to be sulphur dioxide and acetic acid at concentration
s of about 0.1 ppm. Glutaraldehyde was not detected either in the ambi
ent air or in the exhaust duct from an automatic film processor. Labor
atory studies confirmed sulphur dioxide and acetic acid as the main he
adspace constituents above working strength processing solutions but g
lutaraldehyde and butyraldehyde were also detected. Crown copyright (C
) 1996 Published by Elsevier Science Ltd.