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Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan

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 bet...

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Autores principales: Pan, Shih Yu, Liou, Yi Ting, Chang, Moo Been, Chou, Charles C.-K., Ngo, Tuan Hung, Chi, Kai Hsien
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8046994/
https://www.ncbi.nlm.nih.gov/pubmed/33854096
http://dx.doi.org/10.1038/s41598-021-87468-5
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author Pan, Shih Yu
Liou, Yi Ting
Chang, Moo Been
Chou, Charles C.-K.
Ngo, Tuan Hung
Chi, Kai Hsien
author_facet Pan, Shih Yu
Liou, Yi Ting
Chang, Moo Been
Chou, Charles C.-K.
Ngo, Tuan Hung
Chi, Kai Hsien
author_sort Pan, Shih Yu
collection PubMed
description 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 PM(2.5) and PM(2.5)-bound PCDD/Fs with Taiwanese mortality risk. PM(2.5) was quantified using gravimetry and corresponding chemical analyses were done for PM(2.5)-bound chemicals. Mortality risks of PM(2.5) exposure and PCDD/Fs exposure were calculated using Poisson regression. The highest concentration of PM(2.5) (0.53 ± 0.39 mg/Nm(3)) and PCDD/Fs (0.206 ± 0.107 ng I-TEQ/Nm(3)) 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.
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spelling pubmed-80469942021-04-15 Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan Pan, Shih Yu Liou, Yi Ting Chang, Moo Been Chou, Charles C.-K. Ngo, Tuan Hung Chi, Kai Hsien Sci Rep Article 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 PM(2.5) and PM(2.5)-bound PCDD/Fs with Taiwanese mortality risk. PM(2.5) was quantified using gravimetry and corresponding chemical analyses were done for PM(2.5)-bound chemicals. Mortality risks of PM(2.5) exposure and PCDD/Fs exposure were calculated using Poisson regression. The highest concentration of PM(2.5) (0.53 ± 0.39 mg/Nm(3)) and PCDD/Fs (0.206 ± 0.107 ng I-TEQ/Nm(3)) 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. Nature Publishing Group UK 2021-04-14 /pmc/articles/PMC8046994/ /pubmed/33854096 http://dx.doi.org/10.1038/s41598-021-87468-5 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Pan, Shih Yu
Liou, Yi Ting
Chang, Moo Been
Chou, Charles C.-K.
Ngo, Tuan Hung
Chi, Kai Hsien
Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan
title Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan
title_full Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan
title_fullStr Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan
title_full_unstemmed Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan
title_short Characteristics of PCDD/Fs in PM(2.5) from emission stacks and the nearby ambient air in Taiwan
title_sort characteristics of pcdd/fs in pm(2.5) from emission stacks and the nearby ambient air in taiwan
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8046994/
https://www.ncbi.nlm.nih.gov/pubmed/33854096
http://dx.doi.org/10.1038/s41598-021-87468-5
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