Continuous aldehydes monitoring in primary schools in France: Evaluation of emission sources and ventilation practices over 5 weeks

Autor: Irene Lara-Ibeas, Pierre Bernhardt, Aurélie Schulz, Claire Trocquet, Stéphanette Englaro, Béatrice Cormerais, Stéphane Le Calvé
Přispěvatelé: Le Calvé, Stéphane, In’Air Solutions [Strasbourg, France], Institut de chimie et procédés pour l'énergie, l'environnement et la santé (ICPEES), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Direction Santé Publique de la Ville de La Rochelle, This work has been conducted in the framework of IMPACT’AIR project financially supported by ADEME (Agence De l'Environnement et de la Maîtrise de l'Energie), the city of La Rochelle and the Ligue contre le cancer., Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2021
Předmět:
Atmospheric Science
[CHIM.ANAL] Chemical Sciences/Analytical chemistry
010504 meteorology & atmospheric sciences
indoor air
schools
010501 environmental sciences
01 natural sciences
Hexanal
law.invention
chemistry.chemical_compound
Animal science
Indoor air quality
[CHIM.ANAL]Chemical Sciences/Analytical chemistry
law
Waste Management and Disposal
Field campaign
0105 earth and related environmental sciences
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
Aldehydes
[SDU.OCEAN] Sciences of the Universe [physics]/Ocean
Atmosphere
[SDE.IE]Environmental Sciences/Environmental Engineering
ventilation
Acetaldehyde
Propionaldehyde
Pollution
chemistry
13. Climate action
hexanal
Ventilation (architecture)
Environmental science
[SDE.IE] Environmental Sciences/Environmental Engineering
acetaldehyde
Zdroj: Atmospheric Pollution Research
Atmospheric Pollution Research, 2021, 12 (1), pp.340-351. ⟨10.1016/j.apr.2020.09.005⟩
Atmospheric Pollution Research, Elsevier, 2021, 12 (1), pp.340-351. ⟨10.1016/j.apr.2020.09.005⟩
ISSN: 1309-1042
Popis: This paper presents a field campaign conducted in two French elementary schools for 5 weeks aiming at identifying effects of occupation and ventilation practices on indoor aldehyde concentrations and discriminating aldehyde emission from building materials and furniture. The investigated classrooms were first empty and not occupied whereas the furniture was added the following week. Normal school activities were restarted for the last three weeks under various ventilation practices. C2–C7 aldehydes concentrations were monitored with the conventional method based on DNPH derivatization using active sampling followed by off-line HPLC/UV analysis. Acetaldehyde (AA) and hexanal (HA) were the two main aldehydes present if formaldehyde is not considered. The weekly mean values of acetaldehyde concentrations were found in the range 9.5–13.1 μg m−3 (School 1), 9.4–17.6 μg m−3 (School 2) and equal to 5.3 μg m−3 (School 3). In Schools 2 and 3, weekly hexanal concentrations ranged between 3.3 and 5.4 μg m−3 but increased up to 40.1 μg m−3 in school 1 where painting work was performed during the week 2. Smaller amount of propionaldehyde (PA) and benzaldehyde (BA) were always detected, their weekly average concentrations being in the range 0.4–4.0 μg m−3 and 0.9–2.7 μg m−3 for PA and BA, respectively. The results supported by Student's tests show that building materials and furniture contribute to aldehyde emissions while ventilation significantly improves indoor air quality without being able to privilege one of the three ventilation scenarios tested.
Databáze: OpenAIRE
Externí odkaz: