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University of Bristol chemist Allen Haddrell,"especially in crowded and poorly ventilated rooms, as fresh air will have a lower concentration of COcapacity to remain infectious while aerosolized in droplets under different environmental conditions, Haddrell and colleagues discovered the virus's stability is directly impacted by COlevels in the air.
"The high pH of exhaled droplets containing the SARS-CoV-2 virus is likely a major driver of the loss of infectiousness,"behaves as an acid when it interacts with droplets. This causes the pH of the droplets to become less alkaline, resulting in the virus within them being inactivated at a slower rate."Interestingly, different strains of SARS-CoV-2 had different patterns of stability in the air. After only 5 minutes viable viral particle concentrations were 1.
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