Finding F-0542

“40% of owners reported mould contaminated surfaces in their dwellings, from which 42% were naturally ventilated and 18% mechanically ventilated.”

Fungal Contaminants in Energy Efficient Dwellings Impact of Ventilation Type and Level of… (2020). International journal of environmental research and public health. Page 5. CKB 7867

Structure

Factor: Mould
Population: households in energy-efficient dwellings
Setting: dwelling, CH
Study design: survey and sampling of 149 energy-efficient dwellings in Switzerland (44 recent, 105 retrofitted; natural or mechanical ventilation): occupant questionnaire on visible mould, surface samples cultured for actively growing fungi, bedroom settled dust (class 4)
Effect: prevalence 40
Sample: 149 homes

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.