Pollutants from PAHs-containingadhesives in parquet flooring can be released into the indoor air through wear and tear or during parquet work and settle in house dust. PAHs (polycyclic aromatic hydrocarbons) are carcinogenic pollutants that are particularly dangerous to health. Parquet floors are considered to be allergy-friendly, as they are generally easy to clean and do not absorb dust. New parquet floors are no longer laid with adhesives containing PAHs, but with substitutes that are harmless to health.