Flame retardants and phthalates are commonly used in consumer products and building materials, and as such, are prevalent in indoor air. Polycyclic aromatic hydrocarbons (PAHs) can have both indoor and outdoor sources and can also be found in indoor air. Flame retardants, phthalates, and PAHs were measured in indoor air in 71 units in low-income social housing multi-unit residential buildings (MURBs) using silicone rubber (polydimethylsiloxane or PDMS) passive air samplers deployed for 1 week in Toronto, Canada, in late spring and winter of 2017. Tris(1,3-dichloro-2-propyl) phosphate (TDCiPP), diethyl phthalate (DEP), and phenanthrene were the dominate flame retardant, phthalate, and PAH, with median concentrations of 1640 pg/m³ and 1840 and 79.0 ng/m³, respectively. Flame retardant and phthalate concentrations were 2 to 18 times higher than those in predominantly detached and semi-detached houses in Toronto measured using the same passive samplers. These results indicate higher exposures among residents of low-income social housing (63% with income <$23,400) than those of higher socio-economic status single-family dwellings (67% with income >$100,000).

中文翻译：

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社会住房多单元住宅建筑公寓中半挥发性有机化合物的浓度升高

阻燃剂和邻苯二甲酸酯通常用于消费品和建筑材料，因此在室内空气中很普遍。多环芳烃（PAH）可以同时具有室内和室外来源，也可以在室内空气中找到。使用硅橡胶（聚二甲基硅氧烷或PDMS）被动空气采样器在加拿大多伦多市部署了1周，在低收入社会住房多单元住宅建筑（MURB）中的71个单位的室内空气中测量了阻燃剂，邻苯二甲酸盐和PAHs。 2017年春末和冬季。磷酸三（1,3-二氯-2-丙基）酯（TDCiPP），邻苯二甲酸二乙酯（DEP）和菲是主要的阻燃剂，邻苯二甲酸酯和多环芳烃，中位数浓度为1640 pg / m ³和1840以及79.0 ng / m ³， 分别。使用相同的被动采样器测得的阻燃剂和邻苯二甲酸盐浓度比多伦多主要独立式和半独立式房屋高2至18倍。这些结果表明，低收入社会住房（63％的收入低于23,400美元）的居民所面临的风险要高于那些具有较高社会经济地位的单户住宅（67％的收入高于100,000美元）。