Evaluation of hirst-type sampler and PM10 ...
Document type :
Article dans une revue scientifique: Article original
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Title :
Evaluation of hirst-type sampler and PM10 impactor for investigating adhesion of atmospheric particles onto allergenic pollen grains
Author(s) :
Choël, Marie [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Ivanovsky, Anastasia [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Roose, Antoine [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Hamze, Mona [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Blanchenet, Anne-Marie [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Deboudt, Karine [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Visez, Nicolas [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Ivanovsky, Anastasia [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Roose, Antoine [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Hamze, Mona [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Blanchenet, Anne-Marie [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Deboudt, Karine [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Visez, Nicolas [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Journal title :
Aerobiologia
Publisher :
Springer Science and Business Media LLC
Publication date :
2020-09-25
HAL domain(s) :
Chimie/Matériaux
English abstract : [en]
Hirst-type sampler (HTS) is the standard equipment for pollen sampling while cascade impactors are commonly used for particulate matter (PM) samplings. In this work, we investigated the feasibility of using such devices ...
Show more >Hirst-type sampler (HTS) is the standard equipment for pollen sampling while cascade impactors are commonly used for particulate matter (PM) samplings. In this work, we investigated the feasibility of using such devices to reliably assess the atmospheric PM adhesion onto pollen grains (PGs). Birch PGs were deposited on sampling substrates and then exposed to ambient PM in each type of sampling device operating simultaneously. In the HTS, the surface of PGs was significantly polluted with PM during sampling (93.5% of polluted PGs with on average 4 particles per PG with a mean diameter of 2.2 µm). A modified entrance slit was tested and proved to significantly reduce the PM sampling artifact (28% of polluted PGs), although not completely canceling it. In contrast, in the PM10 impactor, all PGs remained free from particulate pollutants. We concluded that the PM pollution of PGs reported in previous studies using a HTS may be overestimated. While PG samplings using a HTS might provide insights into the co-exposure to allergenic pollen and other ambient PM, a size-selective aerosol sampler proves to be more appropriate for a reliable assessment of the extent of PM pollution of airborne pollen in order to give a realistic depiction of the physical and chemical state of ambient PGs that could be inhaled.Show less >
Show more >Hirst-type sampler (HTS) is the standard equipment for pollen sampling while cascade impactors are commonly used for particulate matter (PM) samplings. In this work, we investigated the feasibility of using such devices to reliably assess the atmospheric PM adhesion onto pollen grains (PGs). Birch PGs were deposited on sampling substrates and then exposed to ambient PM in each type of sampling device operating simultaneously. In the HTS, the surface of PGs was significantly polluted with PM during sampling (93.5% of polluted PGs with on average 4 particles per PG with a mean diameter of 2.2 µm). A modified entrance slit was tested and proved to significantly reduce the PM sampling artifact (28% of polluted PGs), although not completely canceling it. In contrast, in the PM10 impactor, all PGs remained free from particulate pollutants. We concluded that the PM pollution of PGs reported in previous studies using a HTS may be overestimated. While PG samplings using a HTS might provide insights into the co-exposure to allergenic pollen and other ambient PM, a size-selective aerosol sampler proves to be more appropriate for a reliable assessment of the extent of PM pollution of airborne pollen in order to give a realistic depiction of the physical and chemical state of ambient PGs that could be inhaled.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
INRA
ENSCL
CNRS
INRA
ENSCL
Collections :
Submission date :
2020-10-01T07:44:56Z
2020-10-06T15:06:12Z
2020-10-06T15:06:12Z
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