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

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DOIResolve DOI: https://doi.org/10.4224/dc66-q984
AuthorSearch for: 1; Search for: 1; Search for: 1ORCID identifier: https://orcid.org/0000-0003-3307-8464; Search for: 1ORCID identifier: https://orcid.org/0000-0002-2480-6821; Search for: ; Search for: ; Search for: ORCID identifier: https://orcid.org/0000-0003-3837-8650
Affiliation
  1. National Research Council of Canada. Metrology Research Centre
FunderSearch for: National Research Council of Canada. Arctic and Northern Challenge Program; Search for: Advancing a Circular Plastics Economy for Canada Program; Search for: Canada-Inuit Nunangat-United Kingdom Arctic Research (CINUK) Program; Search for: Nunatsiavut Government
FormatText, Technical Report
Physical description30 p.
Subjectmicro/nanoparticles; environmental samples; comprehensive characterization; cellular assessments; nanoparticle tracking analysis (NTA); dynamic light scattering (DLS); snow; Nunatsiavut.
Abstract
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.
Publication date
PublisherNational Research Council of Canada. Metrology Research Centre
LanguageEnglish
Peer reviewedNo
NRC numberNM-2025-0004
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Record identifier0a54b431-aa19-46d6-a35d-b53d71ab6dc9
Record created2025-05-31
Record modified2025-06-04
Date modified: