Presence and variability of culturable bioaerosols in three multi-family apartment buildings with different ventilation systems in the Northeastern US.
Presence and variability of culturable bioaerosols in three multi-family apartment buildings with different ventilation systems in the Northeastern US.
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美国东北部三栋不同通风系统的多户公寓楼中可培养生物气溶胶的存在和变异性。
DOI：
10.1111/ina.12743
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发表时间：
2021-03
期刊：
影响因子：
5.8
通讯作者：
Mainelis G
中科院分区：
文献类型：
--
作者：
Myers NT;Calderón L;Pavilonis B;Wang Z;Xiong Y;Sorensen-Allacci M;Plotnik D;Senick J;Gong J;Krogmann U;Andrews CJ;Mainelis G
位于美国东北部的住宅建筑物中的生物气溶胶浓度尚未得到广泛研究。在这里，在2011-2015年，我们研究了三个多户公寓建筑中可培养真菌和细菌的存在和季节性变化，并将生物气溶胶浓度与建筑通风系统类型和环境参数相关联。共采集了409个室内样本和86个室外样本。85%的被调查公寓的可培养真菌的室内-室外（I/O）比率低于1，这表明真菌的室内来源最少。相比之下，56%的公寓可培养细菌的I/O比大于1，表明室内细菌来源的重要性。可培养真菌的I/O比在公寓服务的中央供暖，通风和空调（HVAC）系统低于那些在公寓与窗口AC。通风系统的类型对室内可培养细菌的存在没有显著影响。无论通风类型如何，室内露点（DP）水平与室内可培养真菌（p <0.001）和细菌（p <0.001）之间均存在显著正相关。此外，在中央空调公寓的居民没有遇到极端的DP值。我们的结论是，建筑通风系统，季节性和室内源是影响室内生物气溶胶水平的主要因素在住宅建筑。
Bioaerosol concentrations in residential buildings located in the Northeastern US have not been widely studied. Here, in 2011–2015, we studied the presence and seasonal variability of culturable fungi and bacteria in three multi-family apartment buildings and correlated the bioaerosol concentrations with building ventilation system types and environmental parameters. A total of 409 indoor and 86 outdoor samples were taken. Eighty-five percent of investigated apartments had indoor-outdoor (I/O) ratios of culturable fungi below 1, suggesting minimal indoor sources of fungi. In contrast, 56% of the apartments had I/O ratios for culturable bacteria above 1, indicating the prominence of indoor sources of bacteria. Culturable fungi I/O ratios in apartments serviced by central heating, ventilation and air-conditioning (HVAC) system were lower than those in apartments with window AC. The type of ventilation system did not have a significant effect on the presence of indoor culturable bacteria. A significant positive association was determined between indoor dew point (DP) levels and indoor culturable fungi (p <0.001) and bacteria (p <0.001), regardless of ventilation type. Also, residents in apartments with central HVAC did not experience extreme DP values. We conclude that building ventilation systems, seasonality, and indoor sources are major factors affecting indoor bioaerosol levels in residential buildings.
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DOI：
10.3969/j.issn.1002-0829.2014.02.009
发表时间：
2014-04
期刊：
Shanghai archives of psychiatry
影响因子：
--
作者：
Feng C;Wang H;Lu N;Chen T;He H;Lu Y;Tu XM
通讯作者：
Tu XM
影响因子：
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作者：
Adams RI;Miletto M;Lindow SE;Taylor JW;Bruns TD
通讯作者：
Bruns TD
影响因子：
0.9
作者：
Akoglu H
通讯作者：
Akoglu H
影响因子：
4.5
作者：
Fabian, MP;Miller, SL;Hernandez, MT
通讯作者：
Hernandez, MT
DOI：
10.1038/ismej.2013.28
发表时间：
2013-07
期刊：
The ISME journal
影响因子：
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作者：
通讯作者：
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