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Korean J Occup Environ Med. 1998 May;10(2):282-289. Korean. Original Article.
Lee SJ , Son JI , Sim SH , Kim KY , Song J , Chu SJ , Shim SH , Cho YH , Park DJ .
Department of Occupational medicine, Hanyang University Hospital, Korea.
Department of Medical Genetics, College of Medicine, Hanyang University, Korea.
Department of Anatomy, College of medicine, Hanyang University, Korea.
Koryo Industrial Medical Center, Young Nam Medical Foundation, Korea.

Sister-chromatic exchanges measured in the peripheral lymphocytes of 15 non-smoking medical students after exposure to formaldehyde during a 24-week anatomy class showed a small but significant (p=0.0468) increase when compared with samples obtained from the same individuals immediately before exposure. Mean frequencies of sister-chromatic exchange of cultured peripheral lymphocytes were 5.40+/-0.24 from the samples before exposure and 5.87+/-0.22 from the same samples after exposure. Breathing-zone air samples collected by formaldehyde monitoring kit with digital colorimeter (SKC) showed a mean concentration of 0.72+/-0.02 ppm formaldehyde.

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