Study Examines Chemical in Paper

Kurunthachalam Kannan, professor of Environmental Health Sciences at the School of Public Health and research scientist at the Wadsworth Center at the New York State Department of Health, co-authored a study in the journal Environmental Science & Technology that suggests a chemical bisphenol S (BPS), often used to manufacture thermal paper, may be more toxic to humans than the chemical bisphenol A (BPA), used more often in the past to manufacture paper until concern was raised about absorption of the chemical through the skin.

Manufacturers of paper began using BPS because earlier research showed evidence of the potential toxic effects of BPA. This new study, which found BPS in all receipt paper tested, suggests the substitute chemical BPS is actually absorbed through the skin at a rate of 19 times more than BPA was absorbed when it was used more often to print paper. The chemicals are also used in recycled paper and paper money. Click here to learn more.