Finding F-0330

“On the other hand, oak (0.0063 ± 0.0002 μg g−1 ) and alder (0.0023 ± 0.0001 μg g−1 ) showed the lowest emissions, demonstrating a lower potential contribution to the release of HCHO in indoor environments.”

Negrete-Carrillo et al. Formaldehyde Emissions from Wood Materials and Their Impact on Indoor Air Quality… (2026). Page 7. CKB 1036

Structure

Source: Wood
Factor: Formaldehyde (CH₂O)
Setting: laboratory (desiccator), MX
Study design: laboratory desiccator-method comparison (JIS A 1460 type) of formaldehyde emissions from six interior wood materials: medium-density fiberboard, melamine-faced board, pine, birch, oak and alder (class 4)
Effect: emission-rate 0.0023
Caveat: emission per gram of material in a desiccator, not a room concentration; spread printed as ± without naming the measure

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.