Transfer of PBDEs from TV Housing Plastics to Aqueous Media

Abstract:

To investigate the transfer of PBDEs from products into the aqueous media, experiments and analysis were carried out by contacting TV housing plastics with distilled and dissolved humic solution (DHS) in brown bottles in the artificial climate box. The leaching test conditions were a liquid-to solid ratio of 100:1, and a contact period of 1, 2, 4, 7, 10, 13, 16 and 20 day (s), with pH of 3, 5, 7, 9 and temperature of 15, 20, 25 °C. The leaching concentrations of PBDE increased with DHS rather than distilled water, and were found to be remarkably enhanced when TOC of DHS increased. Despite no detection of most of the lower BDEs in distilled water, most homologues could be detected in DHS, and their solubility increased according to the contact time; those of highly BDEs increased to 10 times their maximum solubility in distilled water. Temperature had limited influence for the limited range investigated. Lower pH generally resulted in higher transfer of PBDEs to aqueous phase.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1997-2000
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1997
• Online since: December 2013
• Authors: Minh Ngoc Duong, Yue Li*, Yan Ping Duan, Ling Chen
• Keywords: PBDEs, pH, Temperature, TOC, Transfer

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