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

Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE

Publication: Oxford : Elsevier Science Ltd
Original Publication: Oxford, New York, : Pergamon Press.

Volatile Organic Compounds*/analysis ; Air Pollution, Indoor*/analysis ; Air Pollution, Indoor*/statistics & numerical data ; Environmental Monitoring*/methods; Reproducibility of Results ; Construction Materials/analysis ; Paint/analysis ; Air Pollutants/analysis ; Gas Chromatography-Mass Spectrometry

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.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Nouha ZINE-FILALI reports financial support was provided by French Environment and Energy Management Agency. Nouha ZINE-FILALI reports financial support was provided by Région Pays de La Loire. Nouha ZINE-FILALI reports a relationship with French Environment and Energy Management Agency that includes: employment.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)

Keywords: Aging process; Building materials; Indoor air quality; Reproducibility; Storage; VOC/SVOC emissions

0 (Volatile Organic Compounds)
0 (Air Pollutants)

Date Created: 20241024 Date Completed: 20241120 Latest Revision: 20241120

20241120

10.1016/j.chemosphere.2024.143607

39447774