Formaldehyde

Formaldehyde is a colorless, flammable, and highly toxic gas with a strong, pungent odor[2][3]. It is widely used in various industries, including the production of resins, adhesives, and other chemicals, as well as in medical laboratories, mortuaries, and consumer products[2][3]. Formaldehyde is classified as a known human carcinogen by the National Toxicology Program and can cause respiratory and skin irritation upon exposure[2][3]. It is also a by-product of automobile combustion and is produced in small amounts by most living organisms, including humans[2].

Forms of Formaldehyde

Formaldehyde can exist in several forms, including molecular formaldehyde, 1,3,5-trioxane, paraformaldehyde, and methanediol[1]. These forms can often be used interchangeably and can be interconverted[1].

Health Effects

Exposure to formaldehyde can cause cancer, and it is listed as a known human carcinogen by the National Toxicology Program[2]. It can also irritate the skin, throat, lungs, and eyes, and repeated exposure can lead to cancer[2][3]. The level of exposure depends upon the dose, duration, and work being done[3].

Workplace Exposure

Workers in various industries, including agriculture, construction, manufacturing, mortuary services, and beauty salons, may be exposed to formaldehyde[3]. The National Institute for Occupational Safety and Health (NIOSH) recommends that employers use the Hierarchy of Controls to prevent injuries and provides resources for managing chemical safety in the workplace[3].

Reducing Exposure

To reduce exposure to formaldehyde, the Environmental Protection Agency (EPA) recommends using "exterior-grade" pressed-wood products, which contain phenol resins and emit less formaldehyde[4]. The EPA has also issued a rule requiring composite wood products to meet acceptable formaldehyde emission standards[4]. Additionally, not allowing smoking indoors, ensuring adequate ventilation, and avoiding products that release formaldehyde can help reduce exposure[4][5].

Citations:

[1] https://en.wikipedia.org/wiki/Formaldehyde

[2] https://www.niehs.nih.gov/health/topics/agents/formaldehyde

[3] https://www.cdc.gov/niosh/topics/formaldehyde/default.html

[4] https://www.cancer.org/cancer/risk-prevention/chemicals/formaldehyde.html

[5] https://www.lung.org/clean-air/indoor-air/indoor-air-pollutants/formaldehyde