Source · category
Building materials
Boards, insulation, flooring, adhesives, paints and sealants — the largest and longest-lasting source of formaldehyde and volatile organic compounds indoors. Emissions are highest in the first months after construction or renovation and continue at lower levels for years.
Why it matters indoors
Building materials differ from most indoor sources in two ways: they are large — a floor or a wall, not a candle — and they cannot be switched off. Pressed-wood products bonded with urea-formaldehyde resin (particleboard, MDF, plywood) are the classic formaldehyde source; paints, adhesives, sealants and floor coverings release a mix of solvents and plasticisers; concrete and granite contribute radon in some regions; damp materials host mould.
What determines emissions
Resin and solvent content, age (emissions decay over months to years), temperature and humidity (both increase release), surface sealing (laminate and paint edges matter), and the ventilation rate that removes what is emitted. Product labels such as E1, CARB 2, Blue Angel, EMICODE and M1 certify low emissions under standardised chamber tests.
What the studies report
| Linked to | Effect | Population | Study design | Source | Checked |
|---|---|---|---|---|---|
| Formaldehyde (CH₂O) | other 126 | — · new apartment | preliminary field study of TVOC and formaldehyde emission dynamics over 30 days after interior finishing in new apartment units in the United Arab Emirates, comparing general and eco-friendly materials | F-0332 Jung et al. Preliminary Study on the Emission Dynamics of TVOC and Forma… | machine |
| Formaldehyde (CH₂O) | formaldehyde of 2 to 7 ppm (thousands of μg/m3) is far above any usual indoor level and rests on the instrument used; the decrease is attributed by the authors to ventilation and reduced occupancy | — · university dormitory (new) | repeated measurements of TVOC and formaldehyde in three identical rooms on different floors of a newly constructed university dormitory in the United Arab Emirates over about two months | F-0334 Jung et al. Mitigating Indoor Air Pollution in University Dormitory: The… (2023) | machine |
| Formaldehyde (CH₂O) | formaldehyde of 2 to 7 ppm (thousands of μg/m3) is far above any usual indoor level and rests on the instrument used; the decrease is attributed by the authors to ventilation and reduced occupancy | — · university dormitory (new) | repeated measurements of TVOC and formaldehyde in three identical rooms on different floors of a newly constructed university dormitory in the United Arab Emirates over about two months | F-0335 Jung et al. Mitigating Indoor Air Pollution in University Dormitory: The… (2023) | machine |
| Formaldehyde (CH₂O) | formaldehyde of 2 to 7 ppm (thousands of μg/m3) is far above any usual indoor level and rests on the instrument used; the decrease is attributed by the authors to ventilation and reduced occupancy | — · university dormitory (new) | repeated measurements of TVOC and formaldehyde in three identical rooms on different floors of a newly constructed university dormitory in the United Arab Emirates over about two months | F-0336 Jung et al. Mitigating Indoor Air Pollution in University Dormitory: The… (2023) | machine |
Each row is one Finding — a sentence as printed in one study, recorded with its page in the Coridum Knowledge Base. Follow the Finding number for the exact wording and the citation. Checked says who verified the row: machine means every automatic check passed and the surrounding text was read; person means someone read the sentence in the document. Rows are re-checked by a person over time. The studies are curated in the Coridum Knowledge Base; the reading of them together is a Claim, shown separately.
Identifiers
- MeSH
- D003252
In the literature
- Choi et al. Comparison of Indoor Radon Reduction Effects Based on Apartment Housing Ventilation Methods. Atmosphere. doi:10.3390/atmos13020204 CKB 0456
- Effect of different factors on building materials emission in indoor air. CKB 0226
- Comprehensive Analysis of Research Trends in Volatile Organic Compounds Emitted from Building Materials: A Bibliometric Analysis (2021). doi:10.1007/978-3-030-76073-1_6 CKB 0179
Studies in the Coridum Knowledge Base in which this term is used. The definition follows standard usage in WHO, ISO and textbook sources; it is not quoted from these papers.
CKB = document number in the Coridum Knowledge Base, our curated library of peer-reviewed studies. Follow the DOI for the original paper.
Cite this page
Coridum Research. Building materials. Coridum Knowledge G-0062, 16 September 2026. https://coridum.com/k/G-0062/