摘要
目的 分析我国主要生产行业的粉尘状况。方法 查阅１９８５ ～１９９５ 年相关的中文核心期刊， 摘录粉尘报道文章３７７ 篇， 将有关数据进行统计处理。结果 （１） 按行业分析， 粉尘算术平均浓度和几何平均浓度最高的分别是煤炭行业和乡镇企业。（２） 按年代分析， ６０ ～８０ 年代粉尘水平呈下降趋势， 而９０ 年代又有升高。（３） 按粉尘种类分析， 滑石尘浓度最高； 陶瓷尘游离ＳｉＯ２ 含量最高； 而电焊尘、锰尘等８ 种粉尘粒径＜ ５μｍ 者达８０ ％ 以上， 分散度较大。（４） 粉尘浓度用算术均数表示呈增加趋势。结论 煤炭、建材等行业为我国防尘重点。
Objective To analyze the dust pollution status in main productive industries of China.Methods Related nucleus academic journals issued in Chinese during 1985 to 1995 were reviewed,337 articles involving dust pollution abstracted and their data analyzed statistically.Results (1)Based on the classification of industry,the average dust concentration in the workplace air of coal industry and township enterprises was the highest both at arithmetic and geometric mean.(2)Based on the year of determination,air dust concentrations appeared a decreasing trend during 1960s to 1980s,and increased again during 1990s.(3)Based on the sort of dust,air talc dust concentration ranked the highest,free silica content was the highest in ceramic industry,particulate diameters less than five micrometers accounted for more than 80 percent of the eight sorts of dust,including electric welding dust and manganese dust with a more dispersed distribution.(4)average dust concentrations in the workplace air appeared an ascending trend in arithmetic mean.Conclusion Dust control should be focused on coal and construction material industries.
出处
《中国工业医学杂志》
CAS
1999年第5期270-272,共3页
Chinese Journal of Industrial Medicine
