Title
Volcanic emissions and atmospheric pollution: A study of nanoparticles
DOI
https://doi.org/10.1016/j.gsf.2020.08.013
Document Type
Article
Publication Date
3-1-2021
Publication Title
Geoscience Frontiers
Abstract
The influence of emissions of an active volcano on the composition of nanoparticles and ultrafine road dust was identified in an urban area of the Andes. Although many cities are close to active volcanoes, few studies have evaluated their influence in road dust composition. Air quality in urban areas is significantly affected by non-exhaust emissions (e.g. road dust, brake wear, tire wear), however, natural sources such as volcanoes also impact the chemical composition of the particles. In this study, elements from volcanic emissions such as Si > Al > Fe > Ca > K > Mg, and Si[sbnd]Al with K were identified as complex hydrates. Similarly, As, Hg, Cd, Pb, As, H, Cd, Pb, V, and salammoniac were observed in nanoparticles and ultrafine material. Mineral composition was detected in the order of quartz> mullite> calcite> kaolinite> illite> goethite> magnetite> zircon> monazite, in addition to salammoniac, a tracer of volcanic sources. The foregoing analysis reflects the importance of carrying out more studies relating the influence of volcanic emissions in road dust in order to protect human health. The road dust load (RD ) ranged between 0.8 and 26.8 mg m in the city. 10 −2
Volume
12
Issue
2
First Page
746
Last Page
755
ISSN
16749871
Recommended Citation
Trejos, Erika M.; Silva Oliveira, Luis Felipe; Hower, James C.; Flores, Eriko M. M.; González, Carlos Mario; Pachón, Jorge Eduardo; and Aristizábal, Beatriz H., "Volcanic emissions and atmospheric pollution: A study of nanoparticles" (2021). Scopus Unisalle. 12.
https://ciencia.lasalle.edu.co/scopus_unisalle/12
Identifier
SCOPUS_ID:85097680329