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Published on: December 12, 2025
Carbonyl compounds indoors in a changing climate
Peter Brimblecombe1, Carlota M Grossi
1School of Environmental Sciences, University of East Anglia, Norwich Research park, Norwich NR4 7TJ, UK. P.Brimblecombe@uea.ac.uk.
Background:
Formic acid, acetic acid and formaldehyde are important compounds in the indoor environment because of the potential for these acids to degrade calcareous materials (shells, eggs, tiles and geological specimens), paper and corrode or tarnish metals, especially copper and lead. Carbonyl sulfide tarnishes both silver and copper encouraging the formation of surface sulfides.
Results:
Carbonyls are evolved more quickly at higher temperatures likely in the Cartoon Gallery at Knole, an important historic house near Sevenoaks in Kent, England where the study is focused. There is a potential for higher concentrations to accumulate. However, it may well be that in warmer climates they will be depleted more rapidly if ventilation increases.
Conclusions:
Carbonyls are likely to have a greater impact in the future.
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