The possible role of the surface active substances (SAS) in the airborne transmission of SARS-CoV-2

Ciglenečki-Jušić, Irena; Orlović-Leko, Palma; Vidović, Kristijan; Tasić, Viša (2021) The possible role of the surface active substances (SAS) in the airborne transmission of SARS-CoV-2. Environmental Research, 198 . ISSN 00139351

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Abstract

Surface active substances (SAS) have the potential to form films at different interfaces, consequently influencing the interfacial properties of atmospheric particulate matter (PM). They can be derived from both human activities and natural processes and can be found in an indoor and outdoor environment. This paper’s fundamental question is the possible role of the SAS in stabilizing respiratory aerosols in the closed space. In that context, we discuss results of preliminary measurements of the SAS and dissolved organic carbon (DOC) concentrations in the water-soluble fractions of PM2.5 and PM10 that were sampled simultaneously in primary school inside and outside of the building. The concentrations of SAS were determined using highly sensitive electrochemical measurements. It was observed that SAS and DOC concentrations have been enhanced indoor in both PM fractions. Consistent with these results, a discussion arises on the possibility that SAS could play a crucial role in respiratory droplet dispersion as stabilizers, especially in a closed space. At the same time, we assume that they could prolong the lifetime of respiratory aerosols and as well viability of some (possible SARS-CoV-2) virus inside of the droplets.

Item Type:	Article
Uncontrolled Keywords:	SARS-CoV-2; Atmospheric surfactants; Indoor atmosphere; Bioaerosols; Particulate matter (PM2.5, PM10); AC voltammetry
Subjects:	NATURAL SCIENCES > Interdisciplinary Natural Sciences
Divisions:	Division for Marine and Enviromental Research
Projects:	Project title Project leader Project code Project type Rogozničko morsko jezero kao model odziva ekosustava na promjene u okolišu-MARRES Irena Ciglenečki-Jušić IP-2018-01-1717 HRZZ
Depositing User:	Ivica Vilibić
Date Deposited:	14 Dec 2022 10:13
URI:	http://fulir.irb.hr/id/eprint/7742
DOI:	10.1016/j.envres.2021.111215

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