All of our factsheets have been reviewed by members of the European Respiratory Society (ERS) who are experts in the field. These are freely available to download in a range of European languages.
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Author
This information was written and compiled by the European Respiratory Society (ERS) Environment and Health Commitee.
Co-funding and production and content support for this publication has been provided by the Health and Environment Alliance (HEAL), through DG Environment, European Commission.