The carbon components in indoor and outdoor PM2.5 in winter of Tianjin

Abstract To study the carbon components in indoor and outdoor PM2.5, the samples of PM2.5 were collected from Nankai University in December 2015. The contents of eight carbon components were analyzed to use the thermo-optical reflection method. The results indicated that organic carbon (OC) mass con...

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Autores principales:	Baoqing Wang, Yinuo Li, Zhenzhen Tang, Ningning Cai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6592326cac32443bb574dadb6172795f
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spelling	oai:doaj.org-article:6592326cac32443bb574dadb6172795f2021-12-02T17:19:16ZThe carbon components in indoor and outdoor PM2.5 in winter of Tianjin10.1038/s41598-021-97530-x2045-2322https://doaj.org/article/6592326cac32443bb574dadb6172795f2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97530-xhttps://doaj.org/toc/2045-2322Abstract To study the carbon components in indoor and outdoor PM2.5, the samples of PM2.5 were collected from Nankai University in December 2015. The contents of eight carbon components were analyzed to use the thermo-optical reflection method. The results indicated that organic carbon (OC) mass concentration was 17.01, 19.48 and 18.92 µg/m3 in outdoor, dormitory and laboratory; elemental carbon (EC) mass concentration was 7.97, 3.56 and 3.53 µg/m3 in outdoor, dormitory and laboratory; and the total carbon aerosol was the proportion of more than 23% of PM2.5 samples. Lower wind speed and higher relative humidity were helpful to the accumulation of PM2.5. The ratio of OC/EC was > 2, and the SOC/OC ratio was > 30%, indicating that SOC was a crucial component indoors and outdoors. About 72% and 85% of the outdoor OC entering dormitory and laboratory environment, and about 59% and 71% of the outdoor EC entering dormitory and laboratory environment. Factor analysis of the eight carbon fractions indicated that the sources of OC and EC in outdoor, dormitory and laboratory is different.Baoqing WangYinuo LiZhenzhen TangNingning CaiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Baoqing Wang Yinuo Li Zhenzhen Tang Ningning Cai The carbon components in indoor and outdoor PM2.5 in winter of Tianjin
description	Abstract To study the carbon components in indoor and outdoor PM2.5, the samples of PM2.5 were collected from Nankai University in December 2015. The contents of eight carbon components were analyzed to use the thermo-optical reflection method. The results indicated that organic carbon (OC) mass concentration was 17.01, 19.48 and 18.92 µg/m3 in outdoor, dormitory and laboratory; elemental carbon (EC) mass concentration was 7.97, 3.56 and 3.53 µg/m3 in outdoor, dormitory and laboratory; and the total carbon aerosol was the proportion of more than 23% of PM2.5 samples. Lower wind speed and higher relative humidity were helpful to the accumulation of PM2.5. The ratio of OC/EC was > 2, and the SOC/OC ratio was > 30%, indicating that SOC was a crucial component indoors and outdoors. About 72% and 85% of the outdoor OC entering dormitory and laboratory environment, and about 59% and 71% of the outdoor EC entering dormitory and laboratory environment. Factor analysis of the eight carbon fractions indicated that the sources of OC and EC in outdoor, dormitory and laboratory is different.
format	article
author	Baoqing Wang Yinuo Li Zhenzhen Tang Ningning Cai
author_facet	Baoqing Wang Yinuo Li Zhenzhen Tang Ningning Cai
author_sort	Baoqing Wang
title	The carbon components in indoor and outdoor PM2.5 in winter of Tianjin
title_short	The carbon components in indoor and outdoor PM2.5 in winter of Tianjin
title_full	The carbon components in indoor and outdoor PM2.5 in winter of Tianjin
title_fullStr	The carbon components in indoor and outdoor PM2.5 in winter of Tianjin
title_full_unstemmed	The carbon components in indoor and outdoor PM2.5 in winter of Tianjin
title_sort	carbon components in indoor and outdoor pm2.5 in winter of tianjin
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6592326cac32443bb574dadb6172795f
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The carbon components in indoor and outdoor PM2.5 in winter of Tianjin

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