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首页> 外文期刊>Environmental Science: Processes & Impacts >Evaluation and guidelines for using polyurethane foam (PUF) passive air samplers in double-dome chambers to assess semi-volatile organic compounds (SVOCs) in non-industrial indoor environments
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Evaluation and guidelines for using polyurethane foam (PUF) passive air samplers in double-dome chambers to assess semi-volatile organic compounds (SVOCs) in non-industrial indoor environments

机译：在双圆顶室内使用聚氨酯泡沫（PUF）被动空气采样器评估非工业室内环境中的半挥发性有机化合物（SVOC）的评估和指南

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Indoor air pollution has been recognized as an important risk factor for human health, especially in areas where people tend to spend most of their time indoors. Many semi-volatile organic compounds (SVOCs) have primarily indoor sources and are present in orders of magnitude higher concentrations indoors than outdoors. Despite this, awareness of SVOCs in indoor air and assessment of the link between indoor concentrations and human health have lagged behind those of outdoor air. This is partially related to challenges associated with indoor sampling of SVOCs. Passive air samplers (PASs), which are widely accepted in established outdoor air monitoring networks, have been used to fill the knowledge gaps on indoor SVOCs distribution. However, their applicability for indoor environments and the assessment of human health risks lack sufficient experimental data. To address this issue, we performed an indoor calibration study of polyurethane foam (PUF) PAS deployed in a double-dome chamber, covering both legacy and new SVOC classes. PUF-PAS and a continuous low-volume active air sampler (AAS) were co-deployed for a calibration period of twelve weeks. Based on the results from this evaluation, PUF-PAS in a double-bowl chamber is recommended for indoor sampling and health risk assessment of gas phase SVOCs, including novel brominated flame retardants (nBFR) providing sufficient exposure time is applied. Data for particle associated SVOCs suffered from significant uncertainties caused by low level of detection and low precision in this study. A more open chamber design for indoor studies may allow for higher sampling rates (R_s) and better performance for the particle associated SVOCs.
机译：室内空气污染已被认为是人类健康的重要风险因素，尤其是在人们倾向于将大部分时间花在室内的地区。许多半挥发性有机化合物（SVOC）的主要来源是室内，并且室内的浓度要比室外的浓度高几个数量级。尽管如此，对室内空气中的SVOC的认识以及对室内浓度与人体健康之间联系的评估仍落后于室外空气。这部分与室内SVOC采样相关的挑战有关。被动空气采样器（PAS）已在已建立的室外空气监控网络中被广泛接受，已被用来填补室内SVOC分布方面的知识空白。但是，它们在室内环境中的适用性以及对人类健康风险的评估缺乏足够的实验数据。为了解决这个问题，我们对部署在双圆顶室内的聚氨酯泡沫（PUF）PAS进行了室内校准研究，涵盖了旧的和新的SVOC类。 PUF-PAS和连续小容量主动空气采样器（AAS）共同部署了十二周的校准期。根据评估结果，建议将双碗室内的PUF-PAS用于室内采样和气相SVOC的健康风险评估，包括可提供足够暴露时间的新型溴化阻燃剂（nBFR）。在这项研究中，与粒子相关的SVOC的数据由于检测水平低和精度低而受到很大的不确定性。用于室内研究的更加开放的腔室设计可以允许更高的采样率（R_s）和与粒子相关的SVOC更好的性能。

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