Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan

Abstract Considered that human activities mostly occur below building heights, the objective of this study was to investigate the temporal variations of fine particular matter (PM2.5)-associated polycyclic aromatic hydrocarbons (PAHs) and benzo[a]pyrene-equivalent (BaPeq) concentrations at four diff...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Wei-Hsiang Chen, Ming-Tsuen Hsieh, Jie-Yu You, Adnan Quadir, Chon-Lin Lee
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/17a002ff1163476a8121befa916b9908
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:17a002ff1163476a8121befa916b9908
record_format	dspace
spelling	oai:doaj.org-article:17a002ff1163476a8121befa916b99082021-12-02T12:09:05ZTemporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan10.1038/s41598-021-83155-72045-2322https://doaj.org/article/17a002ff1163476a8121befa916b99082021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83155-7https://doaj.org/toc/2045-2322Abstract Considered that human activities mostly occur below building heights, the objective of this study was to investigate the temporal variations of fine particular matter (PM2.5)-associated polycyclic aromatic hydrocarbons (PAHs) and benzo[a]pyrene-equivalent (BaPeq) concentrations at four different elevations (6.1, 12.4, 18.4, and 27.1 m) in Kaohsiung City, the largest industrial city of southern Taiwan. Temperature variation was critical for the PM2.5-associated PAH concentrations, which were dominated by benzo[g,h,i]perylene (0.27 ± 0.04 ng m−3 and 24.43% of the total concentration) and other high molecular weight (HMW) species. The PM2.5-associated BaPeq was dominated by 5-ring PAH (36.09%). The PM2.5-associated PAH and BaPeq concentrations at all elevations were significantly increased in winter. In the night, the correlations between the PM2.5-associated PAH concentrations and atmospheric temperatures became negatively stronger, notably at lower elevations (r = − 0.73 ~ − 0.86), whereas the BaPeq during daytime and nighttime were not changed significantly in most months. The PAHs analysis with different PM sizes demonstrated the importance of smaller particles such as PM2.5. The meteorological variation was more important than elevation to influence the low-elevation PM2.5-associated PAH and BaPeq concentrations in an urban area like Kaohsiung City, as the two concentrations were dominated by the PAHs with HMWs and those 5-ring species, respectively.Wei-Hsiang ChenMing-Tsuen HsiehJie-Yu YouAdnan QuadirChon-Lin LeeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wei-Hsiang Chen Ming-Tsuen Hsieh Jie-Yu You Adnan Quadir Chon-Lin Lee Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan
description	Abstract Considered that human activities mostly occur below building heights, the objective of this study was to investigate the temporal variations of fine particular matter (PM2.5)-associated polycyclic aromatic hydrocarbons (PAHs) and benzo[a]pyrene-equivalent (BaPeq) concentrations at four different elevations (6.1, 12.4, 18.4, and 27.1 m) in Kaohsiung City, the largest industrial city of southern Taiwan. Temperature variation was critical for the PM2.5-associated PAH concentrations, which were dominated by benzo[g,h,i]perylene (0.27 ± 0.04 ng m−3 and 24.43% of the total concentration) and other high molecular weight (HMW) species. The PM2.5-associated BaPeq was dominated by 5-ring PAH (36.09%). The PM2.5-associated PAH and BaPeq concentrations at all elevations were significantly increased in winter. In the night, the correlations between the PM2.5-associated PAH concentrations and atmospheric temperatures became negatively stronger, notably at lower elevations (r = − 0.73 ~ − 0.86), whereas the BaPeq during daytime and nighttime were not changed significantly in most months. The PAHs analysis with different PM sizes demonstrated the importance of smaller particles such as PM2.5. The meteorological variation was more important than elevation to influence the low-elevation PM2.5-associated PAH and BaPeq concentrations in an urban area like Kaohsiung City, as the two concentrations were dominated by the PAHs with HMWs and those 5-ring species, respectively.
format	article
author	Wei-Hsiang Chen Ming-Tsuen Hsieh Jie-Yu You Adnan Quadir Chon-Lin Lee
author_facet	Wei-Hsiang Chen Ming-Tsuen Hsieh Jie-Yu You Adnan Quadir Chon-Lin Lee
author_sort	Wei-Hsiang Chen
title	Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan
title_short	Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan
title_full	Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan
title_fullStr	Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan
title_full_unstemmed	Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan
title_sort	temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern taiwan
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/17a002ff1163476a8121befa916b9908
work_keys_str_mv	AT weihsiangchen temporalandverticalvariationsofpolycyclicaromatichydrocarbonatlowelevationsinanindustrialcityofsoutherntaiwan AT mingtsuenhsieh temporalandverticalvariationsofpolycyclicaromatichydrocarbonatlowelevationsinanindustrialcityofsoutherntaiwan AT jieyuyou temporalandverticalvariationsofpolycyclicaromatichydrocarbonatlowelevationsinanindustrialcityofsoutherntaiwan AT adnanquadir temporalandverticalvariationsofpolycyclicaromatichydrocarbonatlowelevationsinanindustrialcityofsoutherntaiwan AT chonlinlee temporalandverticalvariationsofpolycyclicaromatichydrocarbonatlowelevationsinanindustrialcityofsoutherntaiwan
_version_	1718394676624490496

Temporal and vertical variations of polycyclic aromatic hydrocarbon at low elevations in an industrial city of southern Taiwan

Ejemplares similares