RT Report T1 Environmental Health Criteria 89 - Formaldehyde A1 World Health Organization, K1 chemical K1 environmental health K1 micro-organism K1 aquatic ecology K1 terrestrial ecosystem K1 carcinogen K1 toxic substance K1 formaldehyde SN 92 4 154289 6 YR 1989 FD 1989 LK https://wedocs.unep.org/handle/20.500.11822/29405 UL https://wedocs.unep.org/handle/20.500.11822/29405 NO Formaldehyde is a flammable, colourless and readily polymerized gas at ambient temperatures. The most common commercially available form is a 30-50% aqueous solution. Formaldehyde is readily soluble in water, alcohols, and other polar solvents, but has a low degree of solubility in non-polar fluids. DS UN Environment Document Repository RD Sep 22, 2026