Measurement reproducibility and storage impact on VOC/SVOC emission rate from decorative materials

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere Pub Date : 2024-11-01 DOI:10.1016/j.chemosphere.2024.143607

Nouha Zine Filali , Tamara Braish , Yves Andres , Nadine Locoge

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Abstract

Building materials are the major sources of Volatile and Semi-Volatile Organic Compounds (VOCs and SVOCs) in indoor air. Measurements of emission rates of these compounds are likely to be influenced by variation in certain environmental factors resulting in intra-specimen variability. This study aims to (i) evaluate the reproducibility of measurements between specimens and (ii) evaluate the impact of storage on VOC and SVOC emissions from antifungal acrylic paint (applied on polyester-cellulose). For this purpose, 15 discs of tested materials (1.63 ± 0.04 g) were prepared. From these, the emissions rates (ER) of 5 samples were analyzed simultaneously during three measurement campaigns (October 2021, January 2022 and March 2022). Between each campaign, specimens were stored in the dark at ambient temperature (25 ± 4 °C) and relative humidity (50 ± 20 %). Measurements were performed using the field and laboratory emission cell (FLEC) and characterized by gas chromatography (TD-GC-MS/FID) and liquid chromatography (HPLC). Intra-specimen reproducibility was assessed by comparing 5 ER of different specimens collected simultaneously. The impact of storage was evaluated by comparing the average VOC/SVOC ER between each campaign. The results show, concerning the reproducibility of the measurements, that the first measurement campaign provides ER with high variability (10–36 %) compared to the second and third measurement campaigns, which show lower intra-specimen variability (5–24 % and 8–20 % respectively). However, weakly emitted compounds (ER < 10 μg m⁻² h⁻¹) such as aromatics and aldehydes show large variabilities (6–100 % of variation) in all measurement campaigns. Regarding the effect of the 5-months storage a significant decrease in the ER of individual VOC/SVOCs (37–85 %) and of TVOCs (74 %) was noted, except for aldehydes, aromatic hydrocarbons, isopropylacetone and vinyl crotonate, which showed a stability or eventual increase (up to 100 %) in the ER over time, depending on the type of emitted compound.

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测量重现性和储存对装饰材料挥发性有机化合物/挥发性有机化合物排放率的影响。

建筑材料是室内空气中挥发性和半挥发性有机化合物（VOC 和 SVOC）的主要来源。对这些化合物排放率的测量很可能会受到某些环境因素变化的影响，从而导致样本内部的差异。本研究的目的是：(i) 评估试样间测量的可重复性；(ii) 评估储存对（涂在聚酯-纤维素上的）抗真菌丙烯酸涂料的 VOC 和 SVOC 排放的影响。为此，制备了 15 块测试材料的圆片（1.63 ± 0.04 克）。在三次测量活动（2021 年 10 月、2022 年 1 月和 2022 年 3 月）中，同时分析了其中 5 个样本的排放率 (ER)。在每次测量活动之间，样品在环境温度（25 ± 4 °C）和相对湿度（50 ± 20 %）下暗处保存。使用现场和实验室发射池（FLEC）进行测量，并通过气相色谱法（TD-GC-MS/FID）和液相色谱法（HPLC）进行表征。通过比较同时采集的 5 个不同样本的 ER，评估了样本内部的重现性。通过比较每次活动的平均挥发性有机化合物/挥发性有机化合物萃取率，评估了储存的影响。结果表明，在测量的重现性方面，第一次测量活动的ER变异性较高（10 - 36 %），而第二次和第三次测量活动的样本内变异性较低（分别为 5 - 24 % 和 8 - 20 %）。然而，在所有测量活动中，芳烃和醛类等弱排放化合物（ER < 10 μg m-2 h-1）的变异性较大（变异率为 6 - 100%）。至于 5 个月储存的影响，除了醛类、芳香烃、异丙基丙酮和巴豆酸乙烯酯之外，其他挥发性有机化合物/可挥发性有机化合物（37 - 85 %）和 TVOC（74 %）的 ER 都显著下降，随着时间的推移，ER 显示稳定或最终增加（最多 100 %），这取决于排放化合物的类型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemosphere 环境科学-环境科学

CiteScore

15.80

自引率

8.00%

发文量

4975

审稿时长

3.4 months

期刊介绍： Chemosphere, being an international multidisciplinary journal, is dedicated to publishing original communications and review articles on chemicals in the environment. The scope covers a wide range of topics, including the identification, quantification, behavior, fate, toxicology, treatment, and remediation of chemicals in the bio-, hydro-, litho-, and atmosphere, ensuring the broad dissemination of research in this field.