Köck M, Schlacher R, Pichler-Semmelrock F P, Reinthaler F F, Eibel U, Marth E, Friedl H
Office for Information of Environment Protection Institute of Hygiene, University of Graz, Austria.
Cent Eur J Public Health. 1998 Feb;6(1):25-8.
Urban and rural regions are affected by different microorganism loads depending on their structure and utilization. At 7 sampling sites in the metropolitan area of Graz, counts of airborne bacteria as well as yeasts and molds were conducted over a one-year period at two-week intervals. Bacteria and yeasts/molds counts in a village area to the South of Graz dominated by agriculture exceeded the corresponding counts in a suburban residential area fourfold (327 CFU/m3 air-bacteria) and twofold (185 CFU/m3 air-yeasts/molds) respectively. In the vicinity of a composting facility located in the same residential area, microorganism counts exceeded those of the neighboring "unaffected" area by 29% in the case of bacteria and by 54% in the case of yeasts/molds. At an industrial and business site with heavy traffic, the counts are twice that of the area affected by the composting facility (146 CFU/m3 for bacteria and 168 CFU/m3 for yeasts/molds). The proportion of Aspergillus fumigatus is highest in the village area with 23%, compared to 10% in the open land. 49% of the bacteria and 54% of the yeasts and molds can be shown on stages 4-6 of the Andersen-Volumetric-Sampler registering the respirable particle sizes.
城市和农村地区受到的微生物负荷影响不同，这取决于它们的结构和用途。在格拉茨大都市区的7个采样点，对空气中的细菌以及酵母菌和霉菌进行了为期一年的计数，每隔两周进行一次。位于格拉茨以南以农业为主的乡村地区的细菌和酵母菌/霉菌计数分别比郊区居民区高出四倍（空气细菌为327 CFU/m³）和两倍（空气酵母菌/霉菌为185 CFU/m³）。在同一居民区的一个堆肥设施附近，细菌的微生物计数比邻近的“未受影响”区域高出29%，酵母菌/霉菌则高出54%。在一个交通繁忙的工商业场所，计数是受堆肥设施影响区域的两倍（细菌为146 CFU/m³，酵母菌/霉菌为168 CFU/m³）。烟曲霉的比例在乡村地区最高，为23%，而在开阔地带为10%。在记录可吸入粒径的安德森 - 容量采样器的4 - 6阶段，可以检测到49%的细菌以及54%的酵母菌和霉菌。
