オーラルセッション
- 第3日 5月13日（水） 15:50～16:10 C会場（1101/02）
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3C-O15-1550 PDF
室内製品およびハウスダスト中の新規難燃剤の網羅的定性・定量分析
Flame retardants play an important role in reducing the risk of fire hazard, and therefore, are added in several consumer products. However, the production and use of some flame retardants such as hexabromocyclododecane (HBCD) were banned due to their bioaccumulation, toxicity and persistence. This led to an increase in the use of other flame retardants, including novel brominated- and phosphorus-based flame retardants. Despite these studies that have reported the occurrence of novel flame retardants in consumer products and the environment, information on the use of other alternatives to HBCD is still lacking. The aims of this study were to develop an analytical method for simultaneous determination of novel flame retardants by use of liquid chromatography interfaced with tandem mass spectrometry (LC-MS/MS), and to identify novel, previously unidentified, flame retardants in flame-retardant impregnated curtains purchased in Japan in 2014. In addition, the concentrations of novel flame retardants in dust samples collected from residential houses in Japan in 2015 were determined to assess the human health risks. This study elucidates the occurrence and risk level of novel flame retardants in indoor dust samples.