Overview and seasonality of PM10 and PM2.5 in Guayaquil, Ecuador
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 pa...
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2021
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ftunivmainzpubl:oai:openscience.ub.uni-mainz.de:20.500.12030/7490 2023-05-15T18:25:43+02:00 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://openscience.ub.uni-mainz.de/handle/20.500.12030/7490 https://hdl.handle.net/20.500.12030/7490 https://doi.org/10.25358/openscience-7476 eng eng Johannes Gutenberg-Universität Mainz http://doi.org/10.25358/openscience-7476 https://openscience.ub.uni-mainz.de/handle/20.500.12030/7490 2510-3768 CC BY https://creativecommons.org/licenses/by/4.0/ openAccess CC-BY Aerosol science and engineering. 5. -. 2021. 499. 515. - ddc:550 Zeitschriftenaufsatz publishedVersion Text doc-type:article 2021 ftunivmainzpubl https://doi.org/20.500.12030/7490 https://doi.org/10.25358/openscience-7476 2022-09-15T11:47:12Z 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: PM10, PM2.5 and PM1 are 31 ± 14 µg m−3, 21 ± 9 µg m−3, 7 ± 2 µg m−3 and 1 ± 1 µg m−3, 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 PM10 and PM2.5 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 NO2 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. Article in Journal/Newspaper Southern Ocean Gutenberg Open Science (Open-Science-Repository of the Johannes Gutenberg-University Mainz) Guayaquil ENVELOPE(-59.767,-59.767,-62.449,-62.449) Southern Ocean |
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Open Polar |
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Gutenberg Open Science (Open-Science-Repository of the Johannes Gutenberg-University Mainz) |
op_collection_id |
ftunivmainzpubl |
language |
English |
topic |
ddc:550 |
spellingShingle |
ddc:550 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 |
ddc:550 |
description |
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: PM10, PM2.5 and PM1 are 31 ± 14 µg m−3, 21 ± 9 µg m−3, 7 ± 2 µg m−3 and 1 ± 1 µg m−3, 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 PM10 and PM2.5 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 NO2 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. |
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 |
publisher |
Johannes Gutenberg-Universität Mainz |
publishDate |
2021 |
url |
https://openscience.ub.uni-mainz.de/handle/20.500.12030/7490 https://hdl.handle.net/20.500.12030/7490 https://doi.org/10.25358/openscience-7476 |
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 |
Aerosol science and engineering. 5. -. 2021. 499. 515. - |
op_relation |
http://doi.org/10.25358/openscience-7476 https://openscience.ub.uni-mainz.de/handle/20.500.12030/7490 2510-3768 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0/ openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.12030/7490 https://doi.org/10.25358/openscience-7476 |
_version_ |
1766207339098013696 |