Seasonal variation of atmospheric bulk deposition along an urbanization gradient in Nuevo Leon, Mexico
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2022
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| _version_ | 1876486369985953792 |
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| author | Darithsa Loya-González |
| author_facet | Darithsa Loya-González |
| contents | Seasonal variation of atmospheric bulk deposition along an urbanization gradient in Nuevo Leon, Mexico Darithsa Loya-González Israel Cantú-Silva Humberto González-Rodríguez Daniel López-Serna J.M. lfaro-Barbosa Biología metals Bulk deposition seasonal variations urbanization gradient Principal Component Analysis Bulk deposition was studied along an urbanization gradient in the state of Nuevo Leon, Mexico. During a yearlong period seven sites within the Metropolitan Area of Monterrey (MAM) and two rural sites (Allende and Linares) were monitored, with the purpose of characterizing deposition and identifying possible patterns between sites. A total of 32 rainfall events were collected. An average pH of 7.15 ± 0.02 was found, which indicates the presence of neutralizing substances in rainwater, as well as an average Electrical Conductivity of 153.96 ± 6.83 μS/cm. The annual accumulated deposition follows the descending order Ca> K> Mg> Fe> Zn> Mn> Cu> Cd> Ni and does not show significant differences between urban and rural areas, with the exception of Ca (p = 0.017). The Principal Component Analysis shows that metals (Cu, Zn, Ni, Mn, and Cd) represent an important pathway in the deposition phenomena and this behavior is maintained through the urbanization gradient, which denotes that the rural areas could be connected to the air basin of the MAM. Seasonal deposition showed that Zn, Fe, Cd, Cu, Ni, Mn Ca, and Mg are higher during autumn and K during winter. Enrichment Factors shows that Zn and Cd were highly enriched, Cu and Ni were moderately enriched, and Ca, K, and Mn were not enriched. Finally, backward trajectories for rural sites showed that only for Allende site a possible carry-over of pollutants is observed during the summer, since the wind currents come preferably from the northern part of the MAM. 2022 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56581835009 https://www.redalyc.org/journal/565/56581835009/ https://www.redalyc.org/journal/565/56581835009/html/ https://www.redalyc.org/journal/565/56581835009/56581835009.epub https://www.redalyc.org/journal/565/56581835009/movil 10.20937/ATM.52943 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.3 Vol.35 |
| format | Artículo científico |
| id | redalyc_56581835009 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Seasonal variation of atmospheric bulk deposition along an urbanization gradient in Nuevo Leon, Mexico Darithsa Loya-González Biología metals Bulk deposition seasonal variations urbanization gradient Principal Component Analysis Seasonal variation of atmospheric bulk deposition along an urbanization gradient in Nuevo Leon, Mexico Darithsa Loya-González Israel Cantú-Silva Humberto González-Rodríguez Daniel López-Serna J.M. lfaro-Barbosa Biología metals Bulk deposition seasonal variations urbanization gradient Principal Component Analysis Bulk deposition was studied along an urbanization gradient in the state of Nuevo Leon, Mexico. During a yearlong period seven sites within the Metropolitan Area of Monterrey (MAM) and two rural sites (Allende and Linares) were monitored, with the purpose of characterizing deposition and identifying possible patterns between sites. A total of 32 rainfall events were collected. An average pH of 7.15 ± 0.02 was found, which indicates the presence of neutralizing substances in rainwater, as well as an average Electrical Conductivity of 153.96 ± 6.83 μS/cm. The annual accumulated deposition follows the descending order Ca> K> Mg> Fe> Zn> Mn> Cu> Cd> Ni and does not show significant differences between urban and rural areas, with the exception of Ca (p = 0.017). The Principal Component Analysis shows that metals (Cu, Zn, Ni, Mn, and Cd) represent an important pathway in the deposition phenomena and this behavior is maintained through the urbanization gradient, which denotes that the rural areas could be connected to the air basin of the MAM. Seasonal deposition showed that Zn, Fe, Cd, Cu, Ni, Mn Ca, and Mg are higher during autumn and K during winter. Enrichment Factors shows that Zn and Cd were highly enriched, Cu and Ni were moderately enriched, and Ca, K, and Mn were not enriched. Finally, backward trajectories for rural sites showed that only for Allende site a possible carry-over of pollutants is observed during the summer, since the wind currents come preferably from the northern part of the MAM. 2022 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56581835009 https://www.redalyc.org/journal/565/56581835009/ https://www.redalyc.org/journal/565/56581835009/html/ https://www.redalyc.org/journal/565/56581835009/56581835009.epub https://www.redalyc.org/journal/565/56581835009/movil 10.20937/ATM.52943 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.3 Vol.35 |
| title | Seasonal variation of atmospheric bulk deposition along an urbanization gradient in Nuevo Leon, Mexico |
| topic | Biología metals Bulk deposition seasonal variations urbanization gradient Principal Component Analysis |
| url | https://www.redalyc.org/articulo.oa?id=56581835009 https://www.redalyc.org/journal/565/56581835009/ https://www.redalyc.org/journal/565/56581835009/html/ https://www.redalyc.org/journal/565/56581835009/56581835009.epub https://www.redalyc.org/journal/565/56581835009/movil |