TY - JOUR
T1 - Volcanic emissions and atmospheric pollution
T2 - A study of nanoparticles
AU - Trejos, Erika M.
AU - Silva, Luis F.O.
AU - Hower, James C.
AU - Flores, Eriko M.M.
AU - González, Carlos Mario
AU - Pachón, Jorge E.
AU - Aristizábal, Beatriz H.
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/3
Y1 - 2021/3
N2 - 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 (RD10) ranged between 0.8 and 26.8 mg m−2 in the city.
AB - 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 (RD10) ranged between 0.8 and 26.8 mg m−2 in the city.
KW - Amorphous phases
KW - Nanoparticles
KW - Potential hazardous elements
KW - Road dust
KW - Volcano zone
UR - http://www.scopus.com/inward/record.url?scp=85097680329&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85097680329&partnerID=8YFLogxK
U2 - 10.1016/j.gsf.2020.08.013
DO - 10.1016/j.gsf.2020.08.013
M3 - Article
AN - SCOPUS:85097680329
SN - 1674-9871
VL - 12
SP - 746
EP - 755
JO - Geoscience Frontiers
JF - Geoscience Frontiers
IS - 2
ER -
