Stable carbon isotopes in aerosols from Chinese cities: Influence of fossil fuels

Jun ji Cao; Judith C. Chow; Jun Tao; Shun cheng Lee; John G. Watson; Kin fai Ho; Ge hui Wang; Chong shu Zhu; Yong ming Han

doi:10.1016/j.atmosenv.2010.10.056

Stable carbon isotopes in aerosols from Chinese cities: Influence of fossil fuels

Jun ji Cao
, Judith C. Chow
, Jun Tao
, Shun cheng Lee
, John G. Watson
, Kin fai Ho
, Ge hui Wang
, Chong shu Zhu
, Yong ming Han

人居环境与建筑工程学院

CAS - Institute of Earth Environment
Desert Research Institute
South China Institute of Environmental Sciences
Hong Kong Polytechnic University
Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

179 引用（Scopus）

摘要

Stable carbon isotope ratios were determined for the OC and EC fractions of PM_2.5 collected from 14 Chinese cities in January and June/July of 2003. The period-averaged isotope values (δ¹³C) varied from -26.90‰ to -23.08‰ for OC and -26.63‰ to -23.27‰ for EC. A strong correlation (R²=0.70, p<0.0001) between δ¹³C_OC and δ¹³C_EC was found in winter but not summer. Winter vs. summer differences for δ¹³C_OC and δ¹³C_EC were greater for the seven northern cities (∼1 to 3‰) than the seven southern cities (<1‰). Comparisons with isotopic signatures of putative sources suggest that the carbonaceous PM_2.5 was mainly from fossil fuels, especially coal combustion and motor vehicle emissions; the northern cities in particular were strongly impacted by coal combustion during winter. Studies of stable carbon isotopes in OC and EC are potentially useful for identifying sources for carbonaceous PM_2.5, and this approach may be a useful new tool for the study of air pollution.

源语言	英语
页（从-至）	1359-1363
页数	5
期刊	Atmospheric Environment
卷	45
期	6
DOI	https://doi.org/10.1016/j.atmosenv.2010.10.056
出版状态	已出版 - 2月 2011

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可持续发展目标 11 可持续城市和社区

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title = "Stable carbon isotopes in aerosols from Chinese cities: Influence of fossil fuels",

abstract = "Stable carbon isotope ratios were determined for the OC and EC fractions of PM2.5 collected from 14 Chinese cities in January and June/July of 2003. The period-averaged isotope values (δ13C) varied from -26.90‰ to -23.08‰ for OC and -26.63‰ to -23.27‰ for EC. A strong correlation (R2=0.70, p<0.0001) between δ13COC and δ13CEC was found in winter but not summer. Winter vs. summer differences for δ13COC and δ13CEC were greater for the seven northern cities (∼1 to 3‰) than the seven southern cities (<1‰). Comparisons with isotopic signatures of putative sources suggest that the carbonaceous PM2.5 was mainly from fossil fuels, especially coal combustion and motor vehicle emissions; the northern cities in particular were strongly impacted by coal combustion during winter. Studies of stable carbon isotopes in OC and EC are potentially useful for identifying sources for carbonaceous PM2.5, and this approach may be a useful new tool for the study of air pollution.",

keywords = "Carbon isotope, China, Elemental carbon, Organic carbon",

author = "Cao, \{Jun ji\} and Chow, \{Judith C.\} and Jun Tao and Lee, \{Shun cheng\} and Watson, \{John G.\} and Ho, \{Kin fai\} and Wang, \{Ge hui\} and Zhu, \{Chong shu\} and Han, \{Yong ming\}",

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doi = "10.1016/j.atmosenv.2010.10.056",

language = "英语",

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T1 - Stable carbon isotopes in aerosols from Chinese cities

T2 - Influence of fossil fuels

AU - Cao, Jun ji

AU - Chow, Judith C.

AU - Tao, Jun

AU - Lee, Shun cheng

AU - Watson, John G.

AU - Ho, Kin fai

AU - Wang, Ge hui

AU - Zhu, Chong shu

AU - Han, Yong ming

PY - 2011/2

Y1 - 2011/2

N2 - Stable carbon isotope ratios were determined for the OC and EC fractions of PM2.5 collected from 14 Chinese cities in January and June/July of 2003. The period-averaged isotope values (δ13C) varied from -26.90‰ to -23.08‰ for OC and -26.63‰ to -23.27‰ for EC. A strong correlation (R2=0.70, p<0.0001) between δ13COC and δ13CEC was found in winter but not summer. Winter vs. summer differences for δ13COC and δ13CEC were greater for the seven northern cities (∼1 to 3‰) than the seven southern cities (<1‰). Comparisons with isotopic signatures of putative sources suggest that the carbonaceous PM2.5 was mainly from fossil fuels, especially coal combustion and motor vehicle emissions; the northern cities in particular were strongly impacted by coal combustion during winter. Studies of stable carbon isotopes in OC and EC are potentially useful for identifying sources for carbonaceous PM2.5, and this approach may be a useful new tool for the study of air pollution.

AB - Stable carbon isotope ratios were determined for the OC and EC fractions of PM2.5 collected from 14 Chinese cities in January and June/July of 2003. The period-averaged isotope values (δ13C) varied from -26.90‰ to -23.08‰ for OC and -26.63‰ to -23.27‰ for EC. A strong correlation (R2=0.70, p<0.0001) between δ13COC and δ13CEC was found in winter but not summer. Winter vs. summer differences for δ13COC and δ13CEC were greater for the seven northern cities (∼1 to 3‰) than the seven southern cities (<1‰). Comparisons with isotopic signatures of putative sources suggest that the carbonaceous PM2.5 was mainly from fossil fuels, especially coal combustion and motor vehicle emissions; the northern cities in particular were strongly impacted by coal combustion during winter. Studies of stable carbon isotopes in OC and EC are potentially useful for identifying sources for carbonaceous PM2.5, and this approach may be a useful new tool for the study of air pollution.

KW - Carbon isotope

KW - China

KW - Elemental carbon

KW - Organic carbon

UR - https://www.scopus.com/pages/publications/79651475284

U2 - 10.1016/j.atmosenv.2010.10.056

DO - 10.1016/j.atmosenv.2010.10.056

M3 - 文章

AN - SCOPUS:79651475284

SN - 1352-2310

VL - 45

SP - 1359

EP - 1363

JO - Atmospheric Environment

JF - Atmospheric Environment

IS - 6

ER -

Stable carbon isotopes in aerosols from Chinese cities: Influence of fossil fuels

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