| 卢振,张吉礼,孙德兴,端木琳.平行气流真菌孢子释放强度试验研究[J].,2010,(2):271-277 |
| 平行气流真菌孢子释放强度试验研究 |
| Experimental research on parallel air-flow fungal spore source release strength |
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| DOI：10.7511/dllgxb201002021 |
| 中文关键词: 空气微生物 真菌孢子 平行气流 释放强度 |
| 英文关键词: aerobiology fungal spore parallel air-flow release strength |
| 基金项目:中国博士后基金资助项目(20080431140). |
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| 中文摘要: |
| 真菌是室内环境中普遍存在的空气微生物污染物，可对人体产生许多危害．采用自行开发的平行气流真菌孢子释放强度测定装置 PAFST ，测量了5 种典型风速下，4种常见真菌孢子柑桔青霉 Penicillium citrinum 、扩张青霉 Penicillium expansum 、黑曲霉 Aspergillus niger 和枝孢属 Cladosporium Spp. 在3种材料表面的释放强度．结果表明气流的作用形式是影响孢子释放强度的主要因素；在琼脂表面，风速0.9 m/s时，柑桔青霉的释放强度为 7±9 个/cm 2；枝孢属在风速4.7 m/s 时，释放强度为 50±35 个/cm 2；在无纺布表面柑桔青霉和扩张青霉的最小释放气流速度是0.3 m/s，黑曲霉是2.4 m/s，枝孢属为9.4 m/s；当达到孢子释放最大强度时，风速增加释放强度将不再增大． |
| 英文摘要: |
| Fungi are ubiquitous organisms in the indoor environment and can cause numerous adverse health problems. The parallel air-flow fungal spore source strength tester (PAFST) was developed to test the release strength of the Penicillium citrinum, Penicillium expansum, Aspergillus niger, Cladosporium Spp. under 5 air velocities and on 3 materials surfaces. The results show that the action type of air-flow is an important factor to affect the spore release strength. On agar surface when v =0.9 m/s, the release strength of Penicillium citrinum is (7±9) spores/cm 2, and that of Cladosporium Spp. is (50±35) spores/cm 2 at v =4.7 m/s. On the non-woven surface, the minimum air velocity to release spore of Penicillium citrinum and Penicillium expansum is 0.3 m/s, and those of Aspergillus niger and Cladosporium Spp. are 2.4 m/s and 9.4 m/s respectively. When reaching the maximum spore release strength, the spore release strength doesn′t increase with air velocity increasing. |
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