| 冲击式二级采样对呼吸粉尘与总粉尘浓度比值的影响 |
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| 引用本文： | 刘国珍 郭万华. 冲击式二级采样对呼吸粉尘与总粉尘浓度比值的影响[J]. 卫生研究, 1998, 27(6): 367-369 |
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| 作者姓名： | 刘国珍 郭万华 |
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| 作者单位： | 铁道部第三工程局中心卫生防疫站 |
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| 基金项目： | 铁道部第三工程局科研基金 |
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| 摘 要： | 为了验证冲击式二级粉尘采样对呼吸性粉尘与总粉尘浓度比值的影响，作者采用瞬时定点采样方法测定作业场所空气中呼吸性粉尘浓度与总粉尘浓度。结果表明，在采样体积相同的条件下，呼吸性粉尘的比值与总粉尘浓度间具有较好的从属共变关系（ｒ＞０．８），呼吸性粉尘的比值随着总粉尘浓度的升高而相应增大
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| 关 键 词： | 呼吸性粉尘浓度 冲击式采样 粒子反弹脱落 |
Effect of Impactor Sampling on the Ratio of Respirable Dust Concentration to Total Dust Concentration |
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| Liu Guozhen, Guo Wanhua. Effect of Impactor Sampling on the Ratio of Respirable Dust Concentration to Total Dust Concentration[J]. Journal of hygiene research, 1998, 27(6): 367-369 |
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| Authors: | Liu Guozhen Guo Wanhua |
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| Affiliation: | Hygienic and Anti-epidemic Central Station, Third Railway Enginering Bureau, Taiyuan 030006, China. |
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| Abstract: | The aim of this study was to verify the change of the ratio of Respirable Dust Concentration (RDC)to Total Dust Concentration(TDC)taken by two stage impactor sampling.The results showed that there was a correlation between the ratio of RDC/TDC and TDC(correlation coefficient was 0 8576,0 8689,0 8736 and 0 9674,respectively)under the condition of identical sampling volume,and the ratio increases along with the elevated TDC. |
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| Keywords: | Respirable Dust Concentration Total Dust Concentration impactor sampling |
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