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首页> 外文会议>Joint annual meeting of the International Society of Exposure Science and the International Society for Environmental Epidemiology >Simultaneous determination and exposure assessment of novel alternative flame retardants in indoor dust
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Simultaneous determination and exposure assessment of novel alternative flame retardants in indoor dust

机译：室内粉尘中新型阻燃剂的同时测定和接触评估

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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. We previously determined the concentrations of 18 brominated and 15 phosphorus-based flame retardants in 40 flame-retardant impregnated curtains purchased in Japan in 2014. As the result, we identified the novel flame retardants in curtain samples such as tris(2,3-dibromopropyl)isocyanurate (TDBP-TAZTO), (5-ethyl-2-methyl-2-oxido-l,3,2-dioxaphosphorinan-5-yl)methyl-methyl-methylphosphonate (PMMMP), naphthalen-2-yl diphenyl phosphate (NDPhP), and 6-benzyl benzo[c]-[2,l]benzoxaphosphinine 6-oxide (BzlDOPO). Although flame retardants present in curtains can be released into indoor air and concentrate in indoor dust, the information on concentrations of novel flame retardants in indoor dust is limited. 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 determine the concentrations of novel flame retardants in dust samples collected from residential houses in Japan in 2015. In addition, the exposure doses of flame retardants via indoor dust were calculated to assess the human health risks. This study elucidates the occurrence and risk level of novel flame retardants in indoor dust samples.
机译：阻燃剂在降低火灾危险中起着重要作用，因此被添加到几种消费产品中。但是，由于其生物蓄积性，毒性和持久性，禁止生产和使用某些阻燃剂，例如六溴环十二烷（HBCD）。这导致其他阻燃剂的使用增加，包括新型的溴基和磷基阻燃剂。我们之前确定了2014年在日本购买的40片阻燃浸渍窗帘中18种溴化和15种磷基阻燃剂的浓度。结果，我们在窗帘样品中鉴定了新型阻燃剂，如tris（2,3-dibromopropyl ）异氰脲酸酯（TDBP-TAZTO），（5-乙基-2-甲基-2-氧化-1-，3,2-二氧杂膦酸基-5-基）甲基-甲基-甲基膦酸酯（PMMMP），萘-2-基二苯基磷酸酯（ NDPhP）和6-苄基苯并[c]-[2，l]苯并氧膦6-氧化物（Bz1DOPO）。尽管窗帘中存在的阻燃剂可以释放到室内空气中并集中在室内灰尘中，但是有关室内灰尘中新型阻燃剂浓度的信息仍然有限。这项研究的目的是开发一种分析方法，同时使用液相色谱和串联质谱法（LC-MS / MS）同时测定新型阻燃剂，并测定从中收集的粉尘样品中新型阻燃剂的浓度。 2015年为日本的民用住宅。此外，还计算了室内灰尘中阻燃剂的暴露剂量，以评估人体健康风险。这项研究阐明了室内粉尘样品中新型阻燃剂的发生和风险水平。

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