117668 20260223150113.0 doi 10.3390/ijerph19116605 sideral 128607 ART-2022-128607 eng Baselga Lahoz, Marta (orcid)0000-0003-2672-5790 The control of metabolic CO2 in public transport as a strategy to reduce the transmission of respiratory infectious diseases 2022 Access copy available to the general public Unrestricted The global acceptance of the SARS-CoV-2 airborne transmission led to prevention measures based on quality control and air renewal. Among them, carbon dioxide (CO2) measurement has positioned itself as a cost-efficiency, reliable, and straightforward method to assess indoor air renewal indirectly. Through the control of CO2, it is possible to implement and validate the effectiveness of prevention measures to reduce the risk of contagion of respiratory diseases by aerosols. Thanks to the method scalability, CO2 measurement has become the gold standard for diagnosing air quality in shared spaces. Even though collective transport is considered one of the environments with the highest rate of COVID-19 propagation, little research has been done where the air inside vehicles is analyzed. This work explores the generation and accumulation of metabolic CO2 in a tramway (Zaragoza, Spain) operation. Importantly, we propose to use the indicator ppm/person as a basis for comparing environments under different conditions. Our study concludes with an experimental evaluation of the benefit of modifying some parameters of the Heating–Ventilation–Air conditioning (HVAC) system. The study of the particle retention efficiency of the implemented filters shows a poor air cleaning performance that, at present, can be counteracted by opening windows. Seeking a post-pandemic scenario, it will be crucial to seek strategies to improve air quality in public transport to prevent the transmission of infectious diseases. info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 0.828 2022 Health, Toxicology and Mutagenesis 2022 Q2 Public Health, Environmental and Occupational Health 2022 Q2 Pollution 2022 Q2 5.4 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Alba López, Juan José Universidad de Zaragoza (orcid)0000-0003-4440-830X Jiménez Schuhmacher, Alberto (orcid)0000-0002-0136-1049 5004 530 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Ingen.e Infraestr.Transp. 19, 11 (2022), 6605 [19 pp.] Int. j. environ. res. public health International journal of environmental research and public health 1661-7827 4369061 http://zaguan.unizar.es/record/117668/files/texto_completo.pdf Versión publicada 2867954 http://zaguan.unizar.es/record/117668/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:117668 articulos driver 2026-02-23-14:58:19 ARTICLE