SARS-CoV2 and Air Pollution Interactions: Airborne Transmission and COVID-19

Chung, Kian Fan; Abubakar-Waziri, Hisham; Kalaiarasan, Gopinath; Adcock, Ian M.; Dilliway, Claire; Fang, F.; Pain, Christopher C.; Kumar, Pankaj; Ransome, Emma; Savolainen, Vincent; Bhavsar, Pankaj; Porter, Alexandra E.

doi:10.1142/s2529732522400016

Cited by 1 publication

(2 citation statements)

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Section: Discussionsupporting

confidence: 81%

“…Our detection of SARS-CoV-2 on PM, particularly PM2.5 and PM10 supports the notion of an interplay between virus and PM, suggesting there may be an interaction between SARS-CoV2 and PM. 23 PM has been reported to interact with pathogens and may act as a vector for disease transmission. [24][25][26] Most (75%) of our positive samples were collected onto filters which contained PM2.5 fine particles, in agreement with findings of Kayalar et al in Turkey.…”

Section: Discussionmentioning

confidence: 99%

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SARS-CoV2 in public spaces in West London, UK during COVID-19 pandemic

Abubakar-Waziri

Kalaiarasan²,

Wawman

et al. 2023

BMJ Open Resp Res

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BackgroundSpread of SARS-CoV2 by aerosol is considered an important mode of transmission over distances >2 m, particularly indoors.ObjectivesWe determined whether SARS-CoV2 could be detected in the air of enclosed/semi-enclosed public spaces.Methods and analysisBetween March 2021 and December 2021 during the easing of COVID-19 pandemic restrictions after a period of lockdown, we used total suspended and size-segregated particulate matter (PM) samplers for the detection of SARS-CoV2 in hospitals wards and waiting areas, on public transport, in a university campus and in a primary school in West London.ResultsWe collected 207 samples, of which 20 (9.7%) were positive for SARS-CoV2 using quantitative PCR. Positive samples were collected from hospital patient waiting areas, from hospital wards treating patients with COVID-19 using stationary samplers and from train carriages in London underground using personal samplers. Mean virus concentrations varied between 429 500 copies/m3in the hospital emergency waiting area and the more frequent 164 000 copies/m3found in other areas. There were more frequent positive samples from PM samplers in the PM2.5 fractions compared with PM10 and PM1. Culture on Vero cells of all collected samples gave negative results.ConclusionDuring a period of partial opening during the COVID-19 pandemic in London, we detected SARS-CoV2 RNA in the air of hospital waiting areas and wards and of London Underground train carriage. More research is needed to determine the transmission potential of SARS-CoV2 detected in the air.

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Section: Discussionsupporting

confidence: 81%