4.7 Article

Characterization of brominated flame retardants in construction and demolition waste components: HBCD and PBDEs

Journal

SCIENCE OF THE TOTAL ENVIRONMENT
Volume 572, Issue -, Pages 77-85

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2016.07.165

Keywords

Construction and demolition waste; Hazardous characterization; Persistent organic pollutants; Brominated flame retardants

Funding

  1. Scientific Research Foundation of Introduced High Talent Financial Subsidies of Shenzhen University [000044]
  2. NSFC [21507090]
  3. Shenzhen Fundamental Research Project [JCYJ20150324141711622, JCYJ20150529164656097]

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The vast majority of construction material is inert and can be managed as nonhazardous. However, structures may have either been built with some environmentally unfriendly substances such as brominated flame retardants (BFRs), or have absorbed harmful elements such as heavy metals. This study focuses on end-of-life construction materials, i.e. construction and demolition (C&D) waste components. The aim was to characterize the concentration of extremely harmful substances, primarily BFRs, including hexabromocyclododecane (HBCD) and polybrominateddiphenyl ethers (PBDEs). Results revealed extremely high contents of HBCD and PBDEs in typical C&D waste components, particularly polyurethane foam materials. Policies should therefore be developed for the proper management of C&D waste, with priority for POP-containing debris. The first priority is to develop a classification system and procedures to separate out the harmful materials for more extensive processing. Additionally, identification and quantification of the environmental implications associated with dumping dominated disposal of these wastes are required. Finally, more sustainable materials should be selected for use in the construction industry. (C) 2016 Elsevier B.V. All rights reserved.

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