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Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait

The spatiotemporal distribution and chemical composition of atmospheric fine particles in areas around the Taiwan Strait were firstly investigated. Fine particles (PM(2.5)) were simultaneously collected at two sites on the west-side, one site at an offshore island, and three sites on the east-side o...

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Autores principales: Li, Tsung-Chang, Yuan, Chung-Shin, Huang, Hu-Ching, Lee, Chon-Lin, Wu, Shui-Ping, Tong, Chuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4789734/
https://www.ncbi.nlm.nih.gov/pubmed/26973085
http://dx.doi.org/10.1038/srep22956
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author Li, Tsung-Chang
Yuan, Chung-Shin
Huang, Hu-Ching
Lee, Chon-Lin
Wu, Shui-Ping
Tong, Chuan
author_facet Li, Tsung-Chang
Yuan, Chung-Shin
Huang, Hu-Ching
Lee, Chon-Lin
Wu, Shui-Ping
Tong, Chuan
author_sort Li, Tsung-Chang
collection PubMed
description The spatiotemporal distribution and chemical composition of atmospheric fine particles in areas around the Taiwan Strait were firstly investigated. Fine particles (PM(2.5)) were simultaneously collected at two sites on the west-side, one site at an offshore island, and three sites on the east-side of the Taiwan Strait in 2013–2014. Field sampling results indicated that the average PM(2.5) concentrations at the west-side sampling sites were generally higher than those at the east-side sampling sites. In terms of chemical composition, the most abundant water-soluble ionic species of PM(2.5) were SO(4)(2−), NO(3)(−), and NH(4)(+), while natural crustal elements dominated the metallic content of PM(2.5), and the most abundant anthropogenic metals of PM(2.5) were Pb, Ni and Zn. Moreover, high OC/EC ratios of PM(2.5) were commonly observed at the west-side sampling sites, which are located at the downwind of major stationary sources. Results from CMB receptor modeling showed that the major sources of PM(2.5) were anthropogenic sources and secondary aerosols at the both sides, and natural sources dominated PM(2.5) at the offshore site. A consistent decrease of secondary sulfate and nitrate contribution to PM(2.5) suggested the transportation of aged particles from the west-side to the east-side of the Taiwan Strait.
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spelling pubmed-47897342016-03-16 Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait Li, Tsung-Chang Yuan, Chung-Shin Huang, Hu-Ching Lee, Chon-Lin Wu, Shui-Ping Tong, Chuan Sci Rep Article The spatiotemporal distribution and chemical composition of atmospheric fine particles in areas around the Taiwan Strait were firstly investigated. Fine particles (PM(2.5)) were simultaneously collected at two sites on the west-side, one site at an offshore island, and three sites on the east-side of the Taiwan Strait in 2013–2014. Field sampling results indicated that the average PM(2.5) concentrations at the west-side sampling sites were generally higher than those at the east-side sampling sites. In terms of chemical composition, the most abundant water-soluble ionic species of PM(2.5) were SO(4)(2−), NO(3)(−), and NH(4)(+), while natural crustal elements dominated the metallic content of PM(2.5), and the most abundant anthropogenic metals of PM(2.5) were Pb, Ni and Zn. Moreover, high OC/EC ratios of PM(2.5) were commonly observed at the west-side sampling sites, which are located at the downwind of major stationary sources. Results from CMB receptor modeling showed that the major sources of PM(2.5) were anthropogenic sources and secondary aerosols at the both sides, and natural sources dominated PM(2.5) at the offshore site. A consistent decrease of secondary sulfate and nitrate contribution to PM(2.5) suggested the transportation of aged particles from the west-side to the east-side of the Taiwan Strait. Nature Publishing Group 2016-03-14 /pmc/articles/PMC4789734/ /pubmed/26973085 http://dx.doi.org/10.1038/srep22956 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Li, Tsung-Chang
Yuan, Chung-Shin
Huang, Hu-Ching
Lee, Chon-Lin
Wu, Shui-Ping
Tong, Chuan
Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait
title Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait
title_full Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait
title_fullStr Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait
title_full_unstemmed Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait
title_short Inter-comparison of Seasonal Variation, Chemical Characteristics, and Source Identification of Atmospheric Fine Particles on Both Sides of the Taiwan Strait
title_sort inter-comparison of seasonal variation, chemical characteristics, and source identification of atmospheric fine particles on both sides of the taiwan strait
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4789734/
https://www.ncbi.nlm.nih.gov/pubmed/26973085
http://dx.doi.org/10.1038/srep22956
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