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Multifaceted analysis of micro/nanoparticles in Hopedale's snow: comprehensive characterization, cellular assessments, and implications for environmental health

Par Conseil national de recherches du Canada

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DOITrouver le DOI : https://doi.org/10.4224/dc66-q984
AuteurRechercher : 1; Rechercher : 1; Rechercher : 1Identifiant ORCID : https://orcid.org/0000-0003-3307-8464; Rechercher : 1Identifiant ORCID : https://orcid.org/0000-0002-2480-6821; Rechercher : ; Rechercher : ; Rechercher : Identifiant ORCID : https://orcid.org/0000-0003-3837-8650
Affiliation
  1. Conseil national de recherches du Canada. Centre de recherche en métrologie
Bailleur de fondsRechercher : National Research Council of Canada. Arctic and Northern Challenge Program; Rechercher : Advancing a Circular Plastics Economy for Canada Program; Rechercher : Canada-Inuit Nunangat-United Kingdom Arctic Research (CINUK) Program; Rechercher : Nunatsiavut Government
FormatTexte, Rapport technique
Description physique30 p.
Sujetmicro/nanoparticles; environmental samples; comprehensive characterization; cellular assessments; nanoparticle tracking analysis (NTA); dynamic light scattering (DLS); snow; Nunatsiavut.
Résumé
This study presents an in-depth analysis of small particles in snow samples collected from six sites in Hopedale, Nunatsiavut, Newfoundland and Labrador, Canada. Eighteen samples (three per site) were processed to assess the presence, size, concentration, and potential cellular effects of particles. Samples were filtered and classified into two groups: Group A (particles <1 µm, mean size 100–200 nm) and Group B (particles >5 µm). Particle characterization was performed using dynamic light scattering and nanoparticle tracking analysis. Cellular assays were conducted to evaluate potential biological impacts. Results showed that particle size was consistent across locations while particle concentrations varied. The presence of larger particles suggested aggregation or sedimentation of smaller ones. These larger particles showed minimal cellular effects, likely due to their low concentrations. No consistent correlation was observed between particle number and cell viability. The study enhances our understanding of particulate matter in snow and highlights the importance of considering the origin and composition of particles in toxicity assessments.
Date de publication
Maison d’éditionNational Research Council of Canada. Metrology Research Centre
Langueanglais
Publications évaluées par des pairsNon
Numéro du CNRCNM-2025-0004
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Identificateur de l’enregistrement0a54b431-aa19-46d6-a35d-b53d71ab6dc9
Enregistrement créé2025-05-31
Enregistrement modifié2025-06-04
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