中文摘要：

为了了解垃圾填埋场微生物气溶胶粒径分布规律,在北京市某垃圾卫生填埋场填埋区、渗滤液处理区、生活区分别选定监测点,利用安德森六级微生物采样器,对填埋场空气微生物进行了系统的定点取样、测定和分析。研究结果表明,空气细菌粒径分布均为第Ⅰ级（〉8.2μm）最高,填埋区空气细菌粒径呈偏态分布,渗滤液处理区、生活区分别在第Ⅳ级和第Ⅲ级出现第2个峰值。携带细菌的可吸入微粒在渗滤液处理区比例最大。空气真菌与放线菌均在第Ⅳ级分布最高,携带真菌和放线菌的可吸入粒子的比例显著大于细菌（P〈0.05）。填埋区不同作业时段空气微生物粒径在各级分布比例基本一致。填埋区细菌气溶胶中值直径为5.7μm,渗滤液处理区为3.7μm,生活区为5.3μm,显著大于真菌气溶胶和放线菌气溶胶的中值直径（P〈0.05）。

英文摘要：

In order to determine the size distribution of microbe aerosol in waste landfill sites, supervisory points were set in sanitary landfill area, leaehate treatment area and living area in a waste sanitary landfill site. Airborne microbes were collected systematically by Andersen six stages sampler, and the study on the size distribution of microbe aerosol was carried out systematically. The results showed that bacterial aerosol in three functional areas were mostly distributed in stage Ⅰ （ 〉 8.2 μm）. Bacterial aerosol appeared skew distribution at landfill area, and the second peak appeared in stage Ⅳ and Ⅲ separately at leachate treatment area and living area. Bacteria carried by absorbable particulate matter at leachate treatment area accounted the maximum proportion. The highest distribution peak of fungus aerosol and actinomycetic aerosol appeared in stage IV. The ratio of fungi and actinomyeetes carried by absorbable particulate matter were significantly higher than bacteria （P 〈 0.05 ）. The microbe aerosol size distribution proportions were basically identical at all levels. The counted median diameters of bacterial aerosol in three functional areas were 5.7μm, 3.7μm and 5.3μm respectively, which were much greater than that of airborne fungi and actinomycete （P 〈 0.05）.