Subacute (4-week) inhalation toxicity st
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J. W. G. M. Wilmer; R. A. Woutersen; L. M. Appelman; W. R. Leeman; V. J. Feron
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Article
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1987
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John Wiley and Sons
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English
⚖ 232 KB
Male Wistar rats were exposed for 4 weeks, 5 days a week, to 0 (controls), 5 or 10 ppm formaldehyde continuously (8 hours a day), or to 10 or 20 ppm formaldehyde interruptedly (eight 30 min exposure periods separated by 30 min non-exposure periods). Histopathology and cell proliferation studies indi