Biological indoor air pollutants: dampness and mould (2009)

Microbial pollution of indoor air comes from hundreds of species of bacteria, fungi and moulds that grow indoors when sufficient moisture is available. Exposure to microbial contaminants is clinically associated with respiratory symptoms, allergies and asthma, and can affect the immunological system. Preventing or minimizing persistent damp and microbial growth on interior surfaces and building structures is the most important means of avoiding harmful effects of indoor air on health.

The WHO guidelines on dampness and mould provide a comprehensive overview of the scientific evidence on the health problems associated with this ubiquitous pollution, describe the conditions that determine the presence of mould and provide measures to control its growth indoors.