Buczyńska Alina, Cyprowski Marcin, Szadkowska-Stańczyk Irena
Zakład Srodowiskowych Zagrozeń Zdrowia, Instytut Medycyny Pracy im. prof. i. Nofera, Lódź.
Med Pr. 2006;57(6):531-5.
The aim of the study was to assess the microbiological air quality at the selected municipal waste landfills.
The study was conducted during the summer at two municipal landfills. Air samples were collected on agar plates. The evaluation was based on the concentration levels of airborne bacteria and fungi and the identification of isolated strains.
The total number of bacteria and fungi did not exceed the level of 10(3) cfu/m3. The highest concentrations of bacteria in air were observed during unloading, disposing and compacting of municipal wastes (landfill 1 - 6,1 x 10(3) cfu/ml, landfill 2 - 5,4 x 10(2) cfu/m3). The highest concentrations of fungi in air were observed at filled up parts of the landfills (landfill 1 - 4,8 x 10(2) cfu/m3, landfill 2 - 1,2 x 10(3) cfu/m3). The qualitative analysis of the air samples indicated the presence of 21 bacterial and fungi. Among of them bacteria Enterococcus faecalis, Enterobacter cloacae, Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Proteus mirabilis and fungi Aspergillus fumigatus, Candida albicans are classified as harmful biological agents.
The total number of bacteria and fungi in air samples collected at the selected municipal waste landfills did not exceed the reference values. The concentration levels of bioaerosols are diversified according to the size of the landfill, the total number of accumulated wastes and the level of area usage. It is suggested using by municipal waste workers personal protective equipment, especially for respiratory airways and skin and also keeping the rules of individual hygiene.
本研究旨在评估选定的城市垃圾填埋场的微生物空气质量。
本研究于夏季在两个城市垃圾填埋场进行。在琼脂平板上采集空气样本。评估基于空气中细菌和真菌的浓度水平以及分离菌株的鉴定。
细菌和真菌的总数未超过10³ cfu/m³ 的水平。在城市垃圾卸载、处理和压实过程中观察到空气中细菌的最高浓度（垃圾填埋场1 - 6.1×10³ cfu/ml，垃圾填埋场2 - 5.4×10² cfu/m³）。在垃圾填埋场填满的部分观察到空气中真菌的最高浓度（垃圾填埋场1 - 4.8×10² cfu/m³，垃圾填埋场2 - 1.2×10³ cfu/m³）。空气样本的定性分析表明存在21种细菌和真菌。其中粪肠球菌、阴沟肠杆菌、大肠杆菌、肺炎克雷伯菌、产酸克雷伯菌、奇异变形杆菌等细菌以及烟曲霉、白色念珠菌等真菌被归类为有害生物因子。
在选定的城市垃圾填埋场采集的空气样本中细菌和真菌的总数未超过参考值。生物气溶胶的浓度水平根据垃圾填埋场的大小、累积废物的总数和区域使用水平而有所不同。建议城市垃圾处理工人使用个人防护设备，特别是用于呼吸道和皮肤的防护设备，并遵守个人卫生规则。
