PMID- 22551874 OWN - NLM STAT- MEDLINE DCOM- 20121023 LR - 20171116 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 88 IP - 11 DP - 2012 Sep TI - Occurrence of alternative flame retardants in indoor dust from New Zealand: indoor sources and human exposure assessment. PG - 1276-82 LID - 10.1016/j.chemosphere.2012.03.100 [doi] AB - Due to worldwide restrictions on polybrominated diphenyl ethers (PBDEs), the demand for alternative flame retardants (AFRs), such as organophosphate flame retardants (OPFRs), novel brominated FRs (NBFRs) and hexabromocyclododecanes (HBCDs), has recently increased. Little is known about human exposure to NBFRs and OPFRs and that their levels in dust have been scarcely evaluated worldwide. To increase the knowledge regarding these chemicals, we measured concentrations of five major NBFRs, ten OPFRs and three HBCD isomers in indoor dust from New Zealand homes. Dust samples were taken from living room floors (n=34) and from mattresses of the same houses (n=16). Concentrations (ngg(-1)) of NBFRs were: 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE) (<2-175), decabromodiphenyl ethane (DBDPE) (<5-1430), 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (TBB) (<2-2285) and bis(2-ethylhexyl)-3,4,5,6-tetrabromophthalate (TBPH) (<2-640). For OPFRs, concentrations (ngg(-1)) ranged between: tri-ethyl-phosphate (TEP) (<10-235), tri-n-butyl-phosphate (TnBP) (<20-7545), tris-(2-chloroethyl)-phosphate (TCEP) (<20-7605), tris-(1-chloro-2-propyl) phosphate (TCPP) (20-7615), tri-(2-butoxyethyl)-phosphate (TBEP) (50-27325), tris-(2,3-dichloropropyl)-phosphate (TDCPP) (20-16560), tri-phenyl-phosphate (TPhP) (20-35190), and tri-cresyl-phosphate (TCP) (<50-3760). HBCD concentrations fell in the range <2-4100ngg(-1). BTBPE, DBDPE, TBPH, TBEP, and TnBP showed significant positive correlation (p<0.05) between their concentrations in mattresses and the corresponding floor dust (n=16). These data were used to derive a range of plausible exposure scenarios. Although the estimated exposure is well below the corresponding reference doses (RfDs), caution is needed given the likely future increase in use of these FRs and the currently unknown contribution to human exposure by other pathways such as inhalation and diet. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Ali, Nadeem AU - Ali N AD - Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium. FAU - Dirtu, Alin C AU - Dirtu AC FAU - Van den Eede, Nele AU - Van den Eede N FAU - Goosey, Emma AU - Goosey E FAU - Harrad, Stuart AU - Harrad S FAU - Neels, Hugo AU - Neels H FAU - 't Mannetje, Andrea AU - 't Mannetje A FAU - Coakley, Jonathan AU - Coakley J FAU - Douwes, Jeroen AU - Douwes J FAU - Covaci, Adrian AU - Covaci A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120430 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Bromobenzenes) RN - 0 (Flame Retardants) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Hydrocarbons, Brominated) RN - 0 (Organophosphates) RN - 0 (Organophosphorus Compounds) RN - 126-72-7 (tris(2,3-dibromopropyl)phosphate) RN - 34I00D6RNM (1,2-bis(2,4,6-tribromophenoxy)ethane) RN - 5I9835JO3M (hexabromocyclododecane) SB - IM MH - Air Pollution, Indoor/*analysis MH - Bromobenzenes/analysis MH - Environmental Monitoring MH - Flame Retardants/*analysis MH - Halogenated Diphenyl Ethers/analysis MH - Humans MH - Hydrocarbons, Brominated/analysis MH - New Zealand MH - Organophosphates/analysis MH - Organophosphorus Compounds/analysis EDAT- 2012/05/04 06:00 MHDA- 2012/10/24 06:00 CRDT- 2012/05/04 06:00 PHST- 2011/11/08 00:00 [received] PHST- 2012/03/23 00:00 [revised] PHST- 2012/03/31 00:00 [accepted] PHST- 2012/05/04 06:00 [entrez] PHST- 2012/05/04 06:00 [pubmed] PHST- 2012/10/24 06:00 [medline] AID - S0045-6535(12)00483-3 [pii] AID - 10.1016/j.chemosphere.2012.03.100 [doi] PST - ppublish SO - Chemosphere. 2012 Sep;88(11):1276-82. doi: 10.1016/j.chemosphere.2012.03.100. Epub 2012 Apr 30.