When produced in the atmosphere by the action of sunlight and oxygen on atmospheric methane and other hydrocarbons, it becomes part of smog. Formaldehyde has also been detected in outer space.

Mar 30, 2026 · Formaldehyde is a chemical used widely by industry to manufacture building materials and numerous household products. It is also a by-product of combustion and certain other natural …

Oct 14, 2025 · Formaldehyde is toxic to humans, causing respiratory side effects and increasing the risk of certain cancers. Learn when exposure may be dangerous.

A fact sheet that discusses formaldehyde and its possible association with cancer. Includes resources for more information.

Formaldehyde is a gaseous pollutant produced by both human activity and natural sources. Combustion processes account directly or indirectly for most of the formaldehyde entering the environment.

Formaldehyde is naturally produced in small amounts in our bodies. It is used in the production of fertilizer, paper, plywood, and urea-formaldehyde resins. It is also used as a preservative in some …

Oct 1, 2024 · Formaldehyde may be best known for its preservative and anti-bacterial properties. Formaldehyde-based chemistry is also used to make a range of products in the building and …

Mar 21, 2025 · Formaldehyde is a colorless organic compound known for its sharp, distinctive odor. It is highly flammable and serves multiple purposes, including as a preservative, adhesive, and chemical …

May 18, 2018 · Formaldehyde is the simplest aldehyde that is produced endogenously by plants, animals, and humans, and is also made synthetically. Naturally present on Earth and ubiquitous in …

Formaldehyde is a naturally occurring organic compound, a colorless and flammable gas, has a distinct odor at low concentrations, and poses serious exposure health risks. Learn about how formaldehyde …