Dehghani Mansooreh, Sorooshian Armin, Ghorbani Mohammad, Fazlzadeh Mehdi, Miri Mohammad, Badiee Parisa, Parvizi Ali, Ansari Marziye, Baghani Abbas Norouzian, Delikhoon Mahdieh
Research Center for Health Sciences, Department of Environmental Health Engineering, Shiraz University of Medical Sciences, Shiraz, Iran.
Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ 85721, USA.
Aerosol Air Qual Res. 2018 Nov;18(11):2826-2839. doi: 10.4209/aaqr.2017.11.0466. Epub 2018 Oct 30.
Bioaerosols produced from Wastewater Treatment Plants (WWTPs) can pose health risks to plant workers and nearby inhabitants. There is a gap in air quality data for WWTPs in developing countries. The present study aimed to measure airborne bacterial and fungal concentrations in a WWTP in southwestern Iran between September 2015 and May 2016. Active sampling was conducted around operational units, and a total of 600 bacterial and fungal samples were collected. Spatial and seasonal comparisons were made. The highest average concentrations of culturable bacterial aerosol at seasonally dependent locations were, in decreasing order, 2581 ± 401 and 1952 ± 390 CFU m for the selector and aeration tanks, respectively, in autumn; 1363 ± 299 CFU m for the aeration tank in winter; and 1738 ± 350 CFU m for the screw pump in spring. Furthermore, the predominant genera of airborne fungi isolated from the air of the WWTP in all three seasons were spp., spp., spp., spp., and spp. The results of this work emphasize the necessity of controlling WWTP workers' exposure to bioaerosols when bacteria and fungi become aerosolized during aeration.
污水处理厂（WWTPs）产生的生物气溶胶会对工厂工人和附近居民构成健康风险。发展中国家污水处理厂的空气质量数据存在缺口。本研究旨在测量2015年9月至2016年5月期间伊朗西南部一家污水处理厂空气中细菌和真菌的浓度。在运行单元周围进行了主动采样，共采集了600个细菌和真菌样本。进行了空间和季节比较。在季节性相关地点，可培养细菌气溶胶的最高平均浓度按降序排列，秋季选择池和曝气池分别为2581±401和1952±390 CFU/m³；冬季曝气池为1363±299 CFU/m³；春季螺杆泵为1738±350 CFU/m³。此外，在所有三个季节中，从污水处理厂空气中分离出的空气传播真菌的主要属为 spp.、 spp.、 spp.、 spp.和 spp.。这项工作的结果强调了在曝气过程中细菌和真菌气溶胶化时控制污水处理厂工人接触生物气溶胶的必要性。
