Figure 2: Changes of body weight in SD rats after 28 days inhalation of ethylene glycol. The groups of five male rats were exposed to ethylene glycol (0, 4, 20, 100 mg/m3) for sub-acute inhalation toxicity (28 day study). Low: 4 mg/m3, middle: 20 mg/m3, high: 100 mg/m3.