Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan

Abstract This study aimed to find the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in fine particulate matter from different stationary emission sources (coal-fired boiler, CFB; municipal waste incinerator, MWI; electric arc furnace, EAF) in Taiwan and the relatio...

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Autores principales:	Shih Yu Pan, Yi Ting Liou, Moo Been Chang, Charles C.-K. Chou, Tuan Hung Ngo, Kai Hsien Chi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/644de58508784dbc873454c6c40ccb0f
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spelling	oai:doaj.org-article:644de58508784dbc873454c6c40ccb0f2021-12-02T14:30:46ZCharacteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan10.1038/s41598-021-87468-52045-2322https://doaj.org/article/644de58508784dbc873454c6c40ccb0f2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87468-5https://doaj.org/toc/2045-2322Abstract This study aimed to find the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in fine particulate matter from different stationary emission sources (coal-fired boiler, CFB; municipal waste incinerator, MWI; electric arc furnace, EAF) in Taiwan and the relationship between PM2.5 and PM2.5-bound PCDD/Fs with Taiwanese mortality risk. PM2.5 was quantified using gravimetry and corresponding chemical analyses were done for PM2.5-bound chemicals. Mortality risks of PM2.5 exposure and PCDD/Fs exposure were calculated using Poisson regression. The highest concentration of PM2.5 (0.53 ± 0.39 mg/Nm3) and PCDD/Fs (0.206 ± 0.107 ng I-TEQ/Nm3) was found in CFB and EAF, respectively. Higher proportions of PCDDs over PCDFs were observed in the flue gases of CFB and MWI whereas it was reversed in EAF. For ambient air, PCDD/F congeners around the stationary sources were dominated by PCDFs in vapor phase. Positive matrix factorization (PMF) analysis found that the sources of atmosphere PCDD/Fs were 14.6% from EAF (r = 0.81), 52.6% from CFB (r = 0.74), 18.0% from traffic (r = 0.85) and 14.8% from MWI (r = 0.76). For the dioxin congener distribution, PCDDs were dominant in flue gases of CFB and MWI, PCDFs were dominant in EAF. It may be attributed to the different formation mechanisms among wastes incineration, steel-making, and coal-burning processes.Shih Yu PanYi Ting LiouMoo Been ChangCharles C.-K. ChouTuan Hung NgoKai Hsien ChiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shih Yu Pan Yi Ting Liou Moo Been Chang Charles C.-K. Chou Tuan Hung Ngo Kai Hsien Chi Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan
description	Abstract This study aimed to find the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in fine particulate matter from different stationary emission sources (coal-fired boiler, CFB; municipal waste incinerator, MWI; electric arc furnace, EAF) in Taiwan and the relationship between PM2.5 and PM2.5-bound PCDD/Fs with Taiwanese mortality risk. PM2.5 was quantified using gravimetry and corresponding chemical analyses were done for PM2.5-bound chemicals. Mortality risks of PM2.5 exposure and PCDD/Fs exposure were calculated using Poisson regression. The highest concentration of PM2.5 (0.53 ± 0.39 mg/Nm3) and PCDD/Fs (0.206 ± 0.107 ng I-TEQ/Nm3) was found in CFB and EAF, respectively. Higher proportions of PCDDs over PCDFs were observed in the flue gases of CFB and MWI whereas it was reversed in EAF. For ambient air, PCDD/F congeners around the stationary sources were dominated by PCDFs in vapor phase. Positive matrix factorization (PMF) analysis found that the sources of atmosphere PCDD/Fs were 14.6% from EAF (r = 0.81), 52.6% from CFB (r = 0.74), 18.0% from traffic (r = 0.85) and 14.8% from MWI (r = 0.76). For the dioxin congener distribution, PCDDs were dominant in flue gases of CFB and MWI, PCDFs were dominant in EAF. It may be attributed to the different formation mechanisms among wastes incineration, steel-making, and coal-burning processes.
format	article
author	Shih Yu Pan Yi Ting Liou Moo Been Chang Charles C.-K. Chou Tuan Hung Ngo Kai Hsien Chi
author_facet	Shih Yu Pan Yi Ting Liou Moo Been Chang Charles C.-K. Chou Tuan Hung Ngo Kai Hsien Chi
author_sort	Shih Yu Pan
title	Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan
title_short	Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan
title_full	Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan
title_fullStr	Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan
title_full_unstemmed	Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan
title_sort	characteristics of pcdd/fs in pm2.5 from emission stacks and the nearby ambient air in taiwan
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/644de58508784dbc873454c6c40ccb0f
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Characteristics of PCDD/Fs in PM2.5 from emission stacks and the nearby ambient air in Taiwan

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