Degradation in chlorinated water of the UV filter 4-tert-butyl-4 '-methoxydibenzoylmethane present in commercial sunscreens

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Crista, DMA (Author) Other; Miranda, MS (Author) Other; Joaquim C G E Esteves da Silva (Author) FCUP

Journal

Title: Environmental Technology (United Kingdom)

Vol. 36

Pages: 1319-1326

ISSN: 0959-3330

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 21 Citations

Scopus - 24 Citations

Other information

Authenticus ID: P-00A-7V3

DOI: 10.1080/09593330.2014.988184

Abstract (EN): 4-tert-Butyl-4 '-methoxydibenzoylmethane (BMDM) is a widely used ultraviolet A filter. In this work, we have studied the effect of chlorine and dissolved organic matter (DOM) concentrations on the stability of UV filter (BMDM) present in two commercial sunscreen cream formulations in water. An experimental design was used to assess the effect of the two experimental factors on the degradation of BMDM. Higher concentrations of chlorine lead to higher degradation percentages of BMDM and higher concentrations of DOM inhibit its degradation. Moreover, a mono and a dichloro derivate of BMDM were identified as by-products.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8