技術報告
道路粉じんに含まれる臭素化難燃剤の分析法及び名古屋市内の濃度分布
2019 年 29 巻 2 号 p. 59-66
詳細
2019 年 29 巻 2 号 p. 59-66
A simultaneous determination method for brominated flame retardants (BFRs) of hexabromocyclododecane isomers(HBCDs), tetrabromobisphenol A (TBBPA) and 2,4,6-tribromophenol (TBP) in road dust has developed and applied to the environmental distribution survey in Nagoya city. The recovery rates and relative standard deviations (RSD%) of total HBCDs, TBBPA, TBP were 86% (RSD 2.3%), 107% (RSD 1.3%) and 114% (RSD 4.2%), respectively. The method was applied to the determination of the BFRs in road dusts at 50 area meshes (2.5 km ×2.5 km) covering the entirety of Nagoya city. The concentrations of total HBCDs, TBBPA and TBP in the road dust were respectively 0.11 to 10.6 ng/g with the mode value of 1.2 ng/g or less, 0.77 to 120 ng/g with the mode of 2.4 to 7.2 ng/g and 0.64 to 147 ng/g with the mode of 2.8 to 8.4 ng/g. There were no relationships among correlation of the three BFRs, which suggests that the BFRs would be individually emitted from different sources to air with the discrimination of HBCDs isomers.
