Airborne Microorganism Inactivation by a UV-C LED and Ionizer-Based Continuous Sanitation Air (CSA) System in Train Environments

被引:17
作者
Baldelli, Giulia [1 ]
Aliano, Mattia Paolo [2 ]
Amagliani, Giulia [1 ]
Magnani, Mauro [1 ]
Brandi, Giorgio [1 ]
Pennino, Carmelo [3 ]
Schiavano, Giuditta Fiorella [4 ]
机构
[1] Univ Urbino Carlo Bo, Dept Biomol Sci, I-61029 Urbino, Italy
[2] STE Sanitizing Technol & Equipments Srl, I-61020 Petriano, Italy
[3] AF Frigo Clima Impianti Srl, I-41030 Bomporto, Italy
[4] Univ Urbino Carlo Bo, Dept Humanities, I-61029 Urbino, Italy
关键词
air sanitation; public transportation; heating; ventilation and air conditioning (HVAC); UV-C LED; SARS-CoV-2; ULTRAVIOLET GERMICIDAL IRRADIATION; DISINFECTION; FILTERS;
D O I
10.3390/ijerph19031559
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Improving indoor air quality present in environments where people live is important to protect human health. This particularly applies to public transportation, where air quality may affect the health and safety of passengers, workers and staff. To provide better air quality, many buildings and transports are provided with heating, ventilation and air conditioning (HVAC) systems, which are always equipped with filters to retain the particulate present in the airflow, but they lack continuous air sanitization systems. In this study, a new UV-C LED and ionizer-based continuous sanitation air (CSA) system to be installed in a train HVAC was developed (international patent: N.PCT/IB2021/054194) and its sanitation efficacy against various microbial species (bacteria and fungi) was assessed. The device proved to be very effective at the microbial killing of aerodispersed microorganisms, both in its experimental configuration (ISO 15714:2019) and in a train setting. The installation of this CSA system on public transportation appears to be a promising solution to guarantee high microbiological air quality with a very low environmental impact due to its eco-friendly components.
引用
收藏
页数:12
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