Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador
<jats:title>Abstract</jats:title><jats:p>The focus of this study is the assessment of total suspended particles (TSP) and particulate matter (PM) with various aerodynamic diameters in ambient air in Guayaquil, a city in Ecuador that features a tropical climate. The urban annual mea...
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ftzbmed:oai:frl.publisso.de:frl:6445216 2023-11-12T04:26:42+01:00 Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador Moran Zuloaga, Daniel Merchan-Merchan, Wilson Rodríguez-Caballero, Emilio Hernick, Philip Cáceres, Julio Cornejo, Mauricio H. 2021 https://repository.publisso.de/resource/frl:6445216 https://doi.org/10.1007/s41810-021-00117-2 eng eng https://repository.publisso.de/resource/frl:6445216 https://doi.org/10.1007/s41810-021-00117-2 https://creativecommons.org/licenses/by/4.0/ http://lobid.org/resources/99370676363306441#!, 5(4):499-515 SEM–EDS analysis Coarse mode particles Guayaquil Original Paper HYSPLIT Seasonality Zeitschriftenartikel 2021 ftzbmed https://doi.org/10.1007/s41810-021-00117-2 2023-10-22T22:06:57Z <jats:title>Abstract</jats:title><jats:p>The focus of this study is the assessment of total suspended particles (TSP) and particulate matter (PM) with various aerodynamic diameters in ambient air in Guayaquil, a city in Ecuador that features a tropical climate. The urban annual mean concentrations of TSP (Total Suspended Particles), and particle matter (PM) with various aerodynamic diameters such as: PM<jats:sub>10</jats:sub>, PM<jats:sub>2.5</jats:sub> and PM<jats:sub>1</jats:sub> are 31 ± 14 µg m<jats:sup>−3</jats:sup>, 21 ± 9 µg m<jats:sup>−3</jats:sup>, 7 ± 2 µg m<jats:sup>−3</jats:sup> and 1 ± 1 µg m<jats:sup>−3</jats:sup>, respectively. Air mass studies reveal that the city receives a clean Southern Ocean breeze. Backward trajectory analysis show differences between wet and dry seasons. During the dry season, most winds come from the south and southwest, while air masses from the peri urban may contribute as pollutant sources during the wet season. Although mean values of PM<jats:sub>10</jats:sub> and PM<jats:sub>2.5</jats:sub> were below dangerous levels, our year-round continuous monitoring study reveals that maximum values often surpassed those permissible limits allowed by the Ecuadorian norms. A cluster analysis shows four main paths in which west and southwest clusters account for more than 93% of the pollution. Total vertical column of NO<jats:sub>2</jats:sub> shows the pollution footprint is strongest during the dry season, as opposed to the wet season. A microscopic morphological characterization of ambient particles within the city during the wet and the dry season reveals coarse mode particles with irregular and rounded shapes. Particle analysis reveals that samples are composed of urban dust, anthropogenic and organic debris during the dry season while mainly urban dust during the wet season.</jats:p> Article in Journal/Newspaper Southern Ocean PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Guayaquil ENVELOPE(-59.767,-59.767,-62.449,-62.449) Southern Ocean Aerosol Science and Engineering 5 4 499 515 |
institution |
Open Polar |
collection |
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
SEM–EDS analysis Coarse mode particles Guayaquil Original Paper HYSPLIT Seasonality |
spellingShingle |
SEM–EDS analysis Coarse mode particles Guayaquil Original Paper HYSPLIT Seasonality Moran Zuloaga, Daniel Merchan-Merchan, Wilson Rodríguez-Caballero, Emilio Hernick, Philip Cáceres, Julio Cornejo, Mauricio H. Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador |
topic_facet |
SEM–EDS analysis Coarse mode particles Guayaquil Original Paper HYSPLIT Seasonality |
description |
<jats:title>Abstract</jats:title><jats:p>The focus of this study is the assessment of total suspended particles (TSP) and particulate matter (PM) with various aerodynamic diameters in ambient air in Guayaquil, a city in Ecuador that features a tropical climate. The urban annual mean concentrations of TSP (Total Suspended Particles), and particle matter (PM) with various aerodynamic diameters such as: PM<jats:sub>10</jats:sub>, PM<jats:sub>2.5</jats:sub> and PM<jats:sub>1</jats:sub> are 31 ± 14 µg m<jats:sup>−3</jats:sup>, 21 ± 9 µg m<jats:sup>−3</jats:sup>, 7 ± 2 µg m<jats:sup>−3</jats:sup> and 1 ± 1 µg m<jats:sup>−3</jats:sup>, respectively. Air mass studies reveal that the city receives a clean Southern Ocean breeze. Backward trajectory analysis show differences between wet and dry seasons. During the dry season, most winds come from the south and southwest, while air masses from the peri urban may contribute as pollutant sources during the wet season. Although mean values of PM<jats:sub>10</jats:sub> and PM<jats:sub>2.5</jats:sub> were below dangerous levels, our year-round continuous monitoring study reveals that maximum values often surpassed those permissible limits allowed by the Ecuadorian norms. A cluster analysis shows four main paths in which west and southwest clusters account for more than 93% of the pollution. Total vertical column of NO<jats:sub>2</jats:sub> shows the pollution footprint is strongest during the dry season, as opposed to the wet season. A microscopic morphological characterization of ambient particles within the city during the wet and the dry season reveals coarse mode particles with irregular and rounded shapes. Particle analysis reveals that samples are composed of urban dust, anthropogenic and organic debris during the dry season while mainly urban dust during the wet season.</jats:p> |
format |
Article in Journal/Newspaper |
author |
Moran Zuloaga, Daniel Merchan-Merchan, Wilson Rodríguez-Caballero, Emilio Hernick, Philip Cáceres, Julio Cornejo, Mauricio H. |
author_facet |
Moran Zuloaga, Daniel Merchan-Merchan, Wilson Rodríguez-Caballero, Emilio Hernick, Philip Cáceres, Julio Cornejo, Mauricio H. |
author_sort |
Moran Zuloaga, Daniel |
title |
Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador |
title_short |
Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador |
title_full |
Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador |
title_fullStr |
Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador |
title_full_unstemmed |
Overview and Seasonality of PM10 and PM2.5 in Guayaquil, Ecuador |
title_sort |
overview and seasonality of pm10 and pm2.5 in guayaquil, ecuador |
publishDate |
2021 |
url |
https://repository.publisso.de/resource/frl:6445216 https://doi.org/10.1007/s41810-021-00117-2 |
long_lat |
ENVELOPE(-59.767,-59.767,-62.449,-62.449) |
geographic |
Guayaquil Southern Ocean |
geographic_facet |
Guayaquil Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
http://lobid.org/resources/99370676363306441#!, 5(4):499-515 |
op_relation |
https://repository.publisso.de/resource/frl:6445216 https://doi.org/10.1007/s41810-021-00117-2 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s41810-021-00117-2 |
container_title |
Aerosol Science and Engineering |
container_volume |
5 |
container_issue |
4 |
container_start_page |
499 |
op_container_end_page |
515 |
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1782340588725600256 |