Young children spend a substantial part of their waking time in preschools. It is therefore important to reduce the load of hazardous semivolatile organic compounds (SVOCs) in the preschools’ indoor environment. The presence and levels of five SVOC groups were evaluated (1) in a newly built preschool, (2) before and after renovation of a preschool, and (3) in a preschool where SVOC-containing articles were removed. The new building and the renovation were performed using construction materials that were approved with respect to content of restricted chemicals. SVOC substance groups were measured in indoor air and settled dust and included phthalates and alternative plasticizers, organophosphate esters (OPEs), brominated flame retardants, and bisphenols. The most abundant substance groups in both indoor air and dust were phthalates and alternative plasticizers and OPEs. SVOC concentrations were lower or of the same order of magnitude as those reported in comparable studies. The relative Cumulative Hazard Quotient (HQ_cum) was used to assess the effects of the different reduction measures on children's SVOC exposure from indoor air and dust in the preschools. HQ_cum values were low (1.0–6.1%) in all three preschools and decreased further after renovation and article substitution. The SVOCs concentrations decreased significantly more in the preschool renovated with the approved building materials than in the preschool where the SVOC-containing articles were removed.

中文翻译：

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降低措施对瑞典幼儿园室内空气和粉尘中有害半挥发性有机化合物浓度的影响

幼儿大部分醒着的时间都在幼儿园度过。因此，减少学前班室内环境中有害的半挥发性有机化合物 (SVOC) 的负荷非常重要。对五个 SVOC 组的存在和水平进行了评估 (1) 在新建的幼儿园，(2) 在幼儿园改造前后，以及 (3) 在移除了含 SVOC 物品的幼儿园。新建筑和翻修所使用的建筑材料在限制化学品的含量方面得到了批准。SVOC 物质组在室内空气和沉降灰尘中进行测量，包括邻苯二甲酸盐和替代增塑剂、有机磷酸酯 (OPE)、溴化阻燃剂和双酚。室内空气和灰尘中最丰富的物质组是邻苯二甲酸盐和替代增塑剂和 OPE。SVOC 浓度与可比研究中报告的浓度较低或处于相同数量级。相对累积危险商数 (HQ_cum ) 用于评估不同减少措施对学龄前儿童从室内空气和灰尘中 SVOC 暴露的影响。所有三所幼儿园的HQ _cum值都很低（1.0-6.1%），并且在翻新和物品替换后进一步下降。与拆除含 SVOC 物品的幼儿园相比，使用批准的建筑材料翻新的幼儿园的 SVOC 浓度下降幅度更大。