Madsen Anne Mette, Moslehi-Jenabian Saloomeh, Frankel Mika, White John Kerr, Frederiksen Margit W
National Research Centre for the Working Environment, Lersø Parkallé 105, 2100 Copenhagen Ø, Denmark.
Division of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden.
UCL Open Environ. 2023 Mar 31;5:e056. doi: 10.14324/111.444/ucloe.000056. eCollection 2023.
The aim of this study is to obtain knowledge about which cultivable bacterial species are present in indoor air in homes, and whether the concentration and diversity of airborne bacteria are associated with different factors. Measurements have been performed for one whole year inside different rooms in five homes and once in 52 homes. Within homes, a room-to-room variation for concentrations of airborne bacteria was found, but an overlap in bacterial species was found across rooms. Eleven species were found very commonly and included: , , , , , and . The concentrations of Gram-negative bacteria in general and the species were significantly associated with the season with the highest concentrations in spring. The concentrations of , and were associated positively with relative humidity (RH), and concentrations of were associated negatively with temperature and air change rate (ACR). concentrations were associated negatively with ACR. Overall, this study identified species which are commonly present in indoor air in homes, and that the concentrations of some species were associated with the factors: season, ACR and RH.
本研究的目的是了解家庭室内空气中存在哪些可培养细菌种类，以及空气中细菌的浓度和多样性是否与不同因素相关。在五户家庭的不同房间内进行了一整年的测量，并在52户家庭中进行了一次测量。在家庭内部，发现空气中细菌浓度存在房间间差异，但不同房间的细菌种类存在重叠。发现11种细菌非常常见，包括： 、 、 、 、 、 和 。一般革兰氏阴性菌的浓度以及 种细菌与季节显著相关，春季浓度最高。 、 和 的浓度与相对湿度（RH）呈正相关， 的浓度与温度和换气率（ACR）呈负相关。 浓度与ACR呈负相关。总体而言，本研究确定了家庭室内空气中常见的细菌种类，并且某些种类的浓度与季节、ACR和RH等因素相关。
