Toxicity of formaldehyde vapor in B6C3F1 mice exposed for 13 weeks

Groups of 10 male and 10 female B6C3F1 mice were exposed to 0,2,4, 10, 20, or 40 ppm of formaldehyde vapor 6 h/day, 5 days/week for 13 weeks. Clinical abnormalities (dyspnea, listlessness, and hunched posture), significant mortality, and body weight loss were observed in the 40 ppm groups. Pathologi...

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