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首页> 外文期刊>Environmental Science & Technology >Linking PBDEs in House Dust to Consumer Products using X-ray Fluorescence
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Linking PBDEs in House Dust to Consumer Products using X-ray Fluorescence

机译：使用X射线荧光将室内灰尘中的多溴二苯醚与消费品连接起来

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The indoor environment is an important source of exposure to polybrominated diphenyl ethers (PBDEs), a class of fire retardants used in many household products. Previous attempts to link PBDE concentrations in house dust to consumer products have been hampered by the inability to determine the presence of PBDEs in otherwise similar products. We used a portable X-ray fluorescence (XRF) analyzerto nondestructively quantify bromine concentrations in consumer goods. In the validation phase, XRF-measured bromine was highly correlated with GC/MS-measured bromine for furniture foam and plastic from electronics (n = 29, r = 0.93, p < 0.0001). In the field study phase, the XRF-measured bromine in room furniture was associated with pentaBDE concentrations in room dust in the bedroom [r = 0.68, p = 0.001) and main living area (r = 0.51, p = 0.02). We also found an association between XRF-measured bromine levels in electronics and decaBDE levels in dust, largely driven by the high levels in televisions (r = 0.64, p = 0.003 for bedrooms). For the main living area, predicting decaBDE in dust improved when we included an interaction effect between the bromine content of televisions and the number of persons in the house (p < 0.005), a potential surrogate for television usage.
机译：室内环境是暴露于多溴联苯醚（PBDEs）的重要来源，多溴联苯醚是许多家用产品中使用的一类阻燃剂。以前无法将室内灰尘中的多溴二苯醚浓度与消费品联系起来的尝试因无法确定其他类似产品中多溴二苯醚的存在而受到阻碍。我们使用便携式X射线荧光（XRF）分析仪无损地定量了消费品中的溴浓度。在验证阶段，XRF测得的溴与电子产品中家具泡沫和塑料中GC / MS测得的溴高度相关（n = 29，r = 0.93，p <0.0001）。在现场研究阶段，用XRF测量的房间家具中的溴与卧室中房间灰尘中的五溴二苯醚浓度有关[r = 0.68，p = 0.001）和主要生活区域（r = 0.51，p = 0.02）。我们还发现，XRF测得的电子产品中的溴含量与粉尘中的十溴二苯醚含量之间存在关联，这在很大程度上取决于电视中的高含量（卧室= r = 0.64，p = 0.003）。对于主要生活区域，当我们纳入电视中溴含量与房屋人数之间的相互作用影响时，预测灰尘中的十溴二苯醚含量会提高（p <0.005），这可能是电视使用的替代指标。

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