Evaluation of bisphenol A levels in Nigerian thermal receipts and estimation of daily dermal exposure

Author(s)

Adeyemi, Joseph A. ; Gallimberti, Matheus ; Olise, Christian C. ; Rocha, Bruno Alves ; Adedire, Chrs O. ; Barbosa, Fernando

• Document type: Journal article
• Source: Environmental Science and Pollution Research; v. 27, n. 30, p. 5-pg., 2020-06-30.

Abstract

Bisphenol A (BPA) is a high production volume chemical that has wide industrial applications, especially as a color developer in thermal papers. The present study focused on the determination of levels of BPA in thermal receipts collected from different locations in Akure, Nigeria, and the estimation of daily intake of BPA through dermal absorption. Thermal receipts were collected from different locations, and the levels of extracted BPA were determined using fluorescence spectroscopy. The daily intake of BPA was estimated, and the amount was compared with the reference value. BPA was detected in all the samples analyzed with levels ranging from 1.50 to 3.16 mg/g. These values were lower than the values detected in thermal receipts obtained from other countries. The estimated mean daily intakes of BPA by dermal absorption due to handling of thermal receipts were 0.20 and 9.89 mu g/day for the general population and the occupationally exposed individuals, respectively, and were much lower than the reference value of 50 mu g/kg bw/day provided by the European Food Safety Authority. This indicates that dermal exposure to BPA is not a serious health risk to the population. (AU)

• FAPESP's process: 15/20725-5 - Toxicological assessments of nanoproducts using analytical, biochemical and molecular approaches
• Grantee: Joseph Adewuyi Adeyemi
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/24069-3 - ReSEARCH: Recognizing Signatures of the Exposome to Anticipate the Risks for a Continuous Health
• Grantee: Fernando Barbosa Júnior
• Support Opportunities: Research Projects - Thematic Grants