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Article

Indoor Air Quality in Domestic Environments during Periods Close to Italian COVID-19 Lockdown

Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 17/19, 44121 Ferrara, Italy
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Academic Editor: Tom Cole-Hunter
Int. J. Environ. Res. Public Health 2021, 18(8), 4060; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph18084060
Received: 3 March 2021 / Revised: 9 April 2021 / Accepted: 10 April 2021 / Published: 12 April 2021
(This article belongs to the Special Issue Low-Cost Sensors for Environmental Research and Public Health)
This paper describes the in situ monitoring of indoor air quality (IAQ) in two dwellings, using low-cost IAQ sensors to provide high-density temporal and spatial data. IAQ measurements were conducted over 2-week periods in the kitchen and bedroom of each home during the winter, spring, and summer seasons, characterized by different outside parameters, that were simultaneously measured. The mean indoor PM2.5 concentrations were about 15 μg m−3 in winter, they dropped to values close to 10 μg m−3 in spring and increased to levels of about 13 μg m−3 in summer. During the winter campaign, indoor PM2.5 was found mainly associated with particle penetration inside the rooms from outdoors, because of the high outdoor PM2.5 levels in the season. Such pollution winter episodes occur frequently in the study region, due to the combined contributions of strong anthropogenic emissions and stable atmospheric conditions. The concentrations of indoor volatile organic compounds (VOCs) and CO2 increased with the number of occupants (humans and pets), as likely associated with consequent higher emissions through breathing and metabolic processes. They also varied with occupants’ daily activities, like cooking and cleaning. Critic CO2 levels above the limit of 1000 ppm were observed in spring campaign, in the weeks close to the end of the COVID-19 quarantine, likely associated with the increased time that the occupants spent at home. View Full-Text
Keywords: indoor air quality; dwellings; PM2.5; VOCs; CO2 concentration; low-cost IAQ sensors; COVID-19 indoor air quality; dwellings; PM2.5; VOCs; CO2 concentration; low-cost IAQ sensors; COVID-19
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MDPI and ACS Style

Pietrogrande, M.C.; Casari, L.; Demaria, G.; Russo, M. Indoor Air Quality in Domestic Environments during Periods Close to Italian COVID-19 Lockdown. Int. J. Environ. Res. Public Health 2021, 18, 4060. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph18084060

AMA Style

Pietrogrande MC, Casari L, Demaria G, Russo M. Indoor Air Quality in Domestic Environments during Periods Close to Italian COVID-19 Lockdown. International Journal of Environmental Research and Public Health. 2021; 18(8):4060. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph18084060

Chicago/Turabian Style

Pietrogrande, Maria C., Lucia Casari, Giorgia Demaria, and Mara Russo. 2021. "Indoor Air Quality in Domestic Environments during Periods Close to Italian COVID-19 Lockdown" International Journal of Environmental Research and Public Health 18, no. 8: 4060. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph18084060

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