【摘要】 选１０例病理诊断为煤工尘肺Ⅰ期的肺组织测定肺内粉尘含量。将左肺用３７％的盐酸消化，用三氯甲烷和５０％的乙醇去除有机物。结果表明：全肺粉尘含量为８．６４±５．５４ｇ，肺内不同部位的粉尘百分含量：淋巴结＞上叶＞胸膜＞下叶，内带＞外带，经方差分析，不同部位的粉尘百分含量差异有非常显著性（Ｆ＝４４．７６，Ｐ＜０．００１）。肺内粉尘＜５μｍ的占９４．０％，≥１０μｍ的占０．８％，粉尘中可见到一定数量的纤维状粉尘，肺内滞留的粉尘只占粉尘接触量的０．６４％。更多还原

【Abstract】 ust deposition in the lung tissue of 10 cases with pathologically diagnosed stage Ⅰ CWP was de- termined.The left lung tissue was digested by 37% hydrochloric acid,and its organic composition was removed by chloroform and 50% ethanol.Results showed total dust content averaged 8.64 grams per left lung,with a standard deviation of 5.54 grams.Dust content varied in different parts of the lung,measured the highest in lymph nodes,the upper lobe and pleura the next and the lowest in the lower lobe,with a very significant difference by ANOVA(F=44.76,P<0.001).Dust less than 5 μm in diame-ter accounted for 94.0% of the total content,and that equal to or more than 10 μm only 0.8%。A certain amount of fibrous dust could be found in the lung.Dust deposited in the lung accounted only for 0.64% of that exposed to.更多还原