Institute of Environmental and Health Sciences, China Jiliang University, Hangzhou 310018, China; College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China.
School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Sci Total Environ. 2022 Jun 25;827:154280. doi: 10.1016/j.scitotenv.2022.154280. Epub 2022 Mar 2.
In this study, we investigated the emission and fate of 9 organophosphate esters (OPEs) from a natural environment chamber, in which three environment matrices (i.e., air, dust, and window film samples) as well as three decoration materials (i.e., laminate flooring, latex paint, and nonwoven paper) were collected within gradient variation of room temperature and relative humidity. ΣAlkyl-OPEs and ΣCl-OPEs were the predominant classes in the three environment matrices, accounting - on average - for 98.7%, 99.8% and 99.3% of ΣOPEs in indoor dust, air and window film, respectively. TBOEP was the most abundant OPE in air, dust, and laminate flooring, respectively, while tris (2-chloro-isopropyl) phosphate (TCIPP) and tris (1,3-dichloro-2-propyl) phosphate (TDCIPP) in nonwoven paper and latex paint, respectively. The results showed that higher room temperature expedited the emission of OPEs to indoor air. However, the room temperature and relative humidity had no effect on the levels of OPEs in dust. The OPEs equilibrium time in indoor environment may be dependent on room temperature and relative humidity. The area specific emission rates (SERs) of the three materials were calculated, and an optimal expression based on the concept of mass balance model was constructed, preliminarily revealing a general relationship between OPEs source and sink effects in indoor environment.
在这项研究中，我们调查了从自然环境室排放和归宿的 9 种有机磷酸酯（OPEs），其中三个环境基质（即空气、灰尘和窗膜样本）以及三种装饰材料（即层压板地板、乳胶涂料和非织造纸）在室温和相对湿度梯度变化范围内收集。Σ烷基-OPEs 和 ΣCl-OPEs 是三种环境基质中的主要类别，分别占室内灰尘、空气和窗膜中ΣOPEs 的 98.7%、99.8%和 99.3%。TBOEP 是空气中、灰尘中和层压板地板中最丰富的 OPE，而三（2-氯异丙基）磷酸酯（TCIPP）和三（1,3-二氯-2-丙基）磷酸酯（TDCIPP）则分别在非织造纸和乳胶涂料中。结果表明，较高的室温加速了 OPEs 向室内空气的排放。然而，室温和相对湿度对灰尘中 OPEs 的水平没有影响。室内环境中 OPEs 的平衡时间可能取决于室温和相对湿度。计算了三种材料的比排放率（SER），并构建了一个基于质量平衡模型概念的最佳表达式，初步揭示了室内环境中 OPEs 源和汇效应之间的一般关系。
