Communication Dans Un Congrès Année : 2024

QAI-Sport project : characterization of Indoor Air Quality in sports facilities

Elodie Surget

Résumé

Indoor air quality in sports facilities is still poorly studied compared to that of housing and other public buildings. One objective of the QAI-Sport project consisted in providing an overview of the organic chemicals and microbiological composition in air of 10 sports halls having different activities: dojos, motricity rooms and weight rooms. Targeted and non-targeted analytical approaches were applied to provide the broadest possible screening of VOCs, SVOCs and microbiological contaminants in indoor air and settled dusts (for SVOCs) with a focus on emerging pollutants. Two sampling campaigns were performed in unoccupied and occupied rooms to assess the impact of sporting activity on IAQ. For VOCs, active sampling using various supports was applied: Carbograph 4 cartridge, 2,4-dinitrophenylhydrazine cartridge for carbonyls and bubbling solution for carboxylic acids. Analyses were carried out by ATD-GC-MS, HPLC-UV and ion chromatography, respectively. Indoor air SVOCs were sampled on cartridge containing polyurethane foam and quartz filter to determine the total concentration (gas + suspended particles) of about forty compounds. Samples were analyzed by GC/MS/MS after pressurized solvent extraction (PLE). Settled dust were collected by vacuum cleaner in occupied rooms and sieved to 100 μm before PLE and GC/MS/MS analysis. For microbiological contaminants, air was sampled by cyclonic collector in liquid medium and analyzed by culture (bacteria and molds identification) and molecular biology (PCR) for viruses, including Sars-Cov-2. About 50 VOCs were identified and quantified. Composition and concentrations are globally close to those of other indoor environments, with a predominance of carbonyls, especially hexanal. However, some specific and emerging compounds (like benzothiazole, decamethylcyclopentasiloxane and 1-(2-methoxy-1-methyl ethoxy)-2-propanol)) were highlighted. Acetone and 6-methyl-5-hepten-one, emitted by human body, were identified as occupancy tracers. SVOCs are mainly phthalates (DiBP, DBP in air, DEHP, DiNP in dust), organophosphate flame retardants (TCPP in air, EHDPP, TPP in dust) and PAHs (Fluorene, phenanthrene in air, pyrene in dust) which concentrations are particularly high in one weight room’s dust, probably issued from a recycled rubber flooring. Microbiological contamination is similar to residential ones and Sars-CoV-2 was not detected. The project will further consist in identifying pollutants’ sources, understanding their partitioning indoors and assessing exposure.

Domaines

Chimie
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Dates et versions

hal-04752071 , version 1 (24-10-2024)

Identifiants

  • HAL Id : hal-04752071 , version 1

Citer

Valérie Desauziers, Barbara Le Bot, Pierre Le Cann, Hervé Plaisance, N. Costarramone, et al.. QAI-Sport project : characterization of Indoor Air Quality in sports facilities. Roomvent 2024 - 17th conference in ventilation and indoor climate., Apr 2024, Stockholm, Sweden. ⟨hal-04752071⟩
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