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本文研究了受雇于印刷公司20名工人血或尿中的甲酸浓度以及肺泡呼出气中的甲醇量。工人在三个不同的作业点工作,空气中甲醇的浓度分别为85、101和134ppm。在早上和班末收集血,尿及终末呼出气。选择了36和15名对照组,在早上和午后测定其血和尿中的甲酸量以资比较。结果表明,接触工入血中的甲酸浓度早上为3.2±2.4毫克/升,而班末增至7.9±3.2毫克/升(平均增加4.7±3.8毫克/升);而尿中相应的浓度为13.1±3.9毫克/升和20.2±7毫克/升(平均增加7.1±5.3毫升/升)。其差异都是显著的。相反,对照组血中甲酸的浓度早上为5.6±4.5毫克/升,下午为4.9±
In this paper, the concentration of formic acid in the blood or urine of 20 workers employed in a printing company and the amount of methanol in the alveolar exhaled air were studied. Workers work at three different job sites with methanol concentrations of 85, 101 and 134 ppm in the air, respectively. Collect blood, urine and terminal exhale in the morning and at the end of the day. 36 and 15 control groups were selected to determine the amount of formic acid in their blood and urine in the morning and afternoon for comparison. The results showed that the concentration of formic acid in contact with the inflow of blood was 3.2 ± 2.4 mg / L in the morning and 7.9 ± 3.2 mg / L in the morning (average 4.7 ± 3.8 mg / L), while the corresponding concentration in urine was 13.1 ± 3.9 mg / L and 20.2 ± 7 mg / L (average increase 7.1 ± 5.3 mL / L). The differences are significant. In contrast, the concentration of formic acid in the blood of the control group was 5.6 ± 4.5 mg / L in the morning and 4.9 ± in the afternoon