Coexposure to indoor pollutants in French schools and associations with building characteristics
| Autor: | Corinne Mandin, Sutharsini Sivanantham, Olivier Ramalho, Anthony Gregoire, Claire Dassonville, Laeticia Malingre |
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| Rok vydání: | 2021 |
| Předmět: |
Pollutant
Pollution Indoor air Mechanical Engineering media_common.quotation_subject education Fungal contamination Building and Construction complex mixtures chemistry.chemical_compound Indoor air quality chemistry Building dampness Environmental chemistry Environmental science Nitrogen dioxide Electrical and Electronic Engineering Civil and Structural Engineering media_common |
| Zdroj: | Energy and Buildings. 252:111424 |
| ISSN: | 0378-7788 |
| Popis: | A nationwide indoor air quality survey was performed between 2013 and 2017 in 602 classrooms from 308 randomly-selected French schools. The concentrations of the following pollutants were measured in indoor air and/or settled dust: aldehydes, volatile and semivolatile organic compounds, fine particles (PM2.5), nitrogen dioxide and metals. Moreover, indoor fungal contamination was assessed. Clustering methods were applied to identify the different profiles of indoor pollution. Five clusters were identified. One cluster (17% of the classrooms) represents classrooms with higher phthalate concentrations but lower concentrations otherwise in both air and dust. Two clusters show higher concentrations either in air (19%) or in dust (24%). The fourth cluster corresponds to classrooms with higher concentrations of pollutants in both air and dust (21%). The last cluster includes classrooms with lower concentrations in both air and dust (19%). The different clusters were characterized according to building characteristics and the outdoor environment with a multivariate analysis. The highly-polluted classroom clusters appear to be old schools, with a lower occurrence of mechanical ventilation, higher outdoor concentrations and more signs of building dampness compared to the other clusters. The classroom cluster with high phthalate concentrations exhibits a higher proportion of synthetic plastic flooring. |
| Databáze: | OpenAIRE |
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