PMID- 30803600 OWN - NLM STAT- MEDLINE DCOM- 20190912 LR - 20190912 IS - 1879-2456 (Electronic) IS - 0956-053X (Linking) VI - 85 DP - 2019 Feb 15 TI - Concentrations of POPs based wood preservatives in waste timber from demolished buildings and its recycled products in Japan. PG - 445-451 LID - S0956-053X(18)30782-7 [pii] LID - 10.1016/j.wasman.2018.12.039 [doi] AB - One of the major proportions of recycled persistent organic pollutants (POPs)-containing waste is timber originating from old buildings, utility poles, and cross-arms because POPs-based treatments were once a common means of preserving wood. In 2016 and 2017, we conducted the first survey in Japan on the residue concentrations of chlordanes (CHLs), pentachlorophenol (PCP), pentachloroanisole (PCA), and polychloronaphthalenes (PCNs) in waste timber (n = 55) and its recycled products (woodchip, n = 42; particle board, n = 3). In the recycled products, the highest concentrations detected were 0.86 mg kg(-1) CHLs, 3.0 mg kg(-1) PCP, 1.1 mg kg(-1) PCA, and 2.6 mg kg(-1) PCNs, which were one to two orders lower than the low POP content (LPC) limits for the environmentally sound management of wastes defined under the Basel Convention (50, 100, and 10 mg kg(-1), respectively). In the waste timber, which included bearers and columns from demolished buildings, the highest concentrations were 15 mg kg(-1) CHLs, 0.20 mg kg(-1) PCP, and 0.036 mg kg(-1) PCNs, no higher than about 30% of the LPC limit. The concentration of CHLs in timber bearer was significantly higher than those in timber column (p < 0.05). Although none of the waste timber or recycled products had concentrations exceeding the LPC limits, one means of ensuring low POP concentrations in recycled products is separating timber bearer from timber column when demolishing wooden buildings, according to the results in Japan. The timber column can be used to produce recycled products and the remaining timber can be used for heat utilization and power generation. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Koyano, Shyusuke AU - Koyano S AD - Graduate School of Agriculture, Saga University, Japan. FAU - Ueno, Daisuke AU - Ueno D AD - Graduate School of Agriculture, Saga University, Japan. Electronic address: uenod@cc.saga-u.ac.jp. FAU - Yamamoto, Takashi AU - Yamamoto T AD - Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Japan. FAU - Kajiwara, Natsuko AU - Kajiwara N AD - Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Japan. LA - eng PT - Journal Article DEP - 20190116 PL - United States TA - Waste Manag JT - Waste management (New York, N.Y.) JID - 9884362 RN - 0 (Environmental Pollutants) SB - IM MH - *Environmental Pollutants MH - Japan MH - Recycling MH - Wood OTO - NOTNLM OT - Basel convention OT - Persistent organic pollutants (POPs) based wood preservative OT - Recycled product OT - Waste timber EDAT- 2019/02/26 06:00 MHDA- 2019/09/13 06:00 CRDT- 2019/02/27 06:00 PHST- 2018/07/23 00:00 [received] PHST- 2018/12/25 00:00 [revised] PHST- 2018/12/28 00:00 [accepted] PHST- 2019/02/27 06:00 [entrez] PHST- 2019/02/26 06:00 [pubmed] PHST- 2019/09/13 06:00 [medline] AID - S0956-053X(18)30782-7 [pii] AID - 10.1016/j.wasman.2018.12.039 [doi] PST - ppublish SO - Waste Manag. 2019 Feb 15;85:445-451. doi: 10.1016/j.wasman.2018.12.039. Epub 2019 Jan 16.