Characteristics of PM2.5 and carbonaceous aerosols in Xi'an

Yan Cheng; Weiwei Fan; Suixin Liu; Bo Xiao; Wei Guo; Wenwu Li; Ni Wang

Characteristics of PM_2.5 and carbonaceous aerosols in Xi'an

Yan Cheng
, Weiwei Fan
, Suixin Liu
, Bo Xiao
, Wei Guo
, Wenwu Li
, Ni Wang

School of Human Settlements and Civil Engineering

Xi'an Jiaotong University
CAS - Institute of Earth Environment
Meteorological Bureau of Xi'an City

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Daily PM_2.5, organic carbon (OC), and elemental carbon (EC) were measured during 2012.3-2013.2 to study the temporal variations of PM_2.5 and carbonaceous aerosols. PM_2.5 showed a fluctuation from 26.9 to 505.1 μg/m³ during the sampling period. The annual average PM_2.5 mass concentration was 114.0±86.6 μg/m³, exceeding the Chinese air quality standard (GB 3095-2012) for PM_2.5 (35 μg/m³) by a factor of 3.3. The seasonal patterns ranked in descending order as follows, winter>autumn>spring>summer. The average concentrations for OC and EC were 21.44±15.76 and 6.16±3.38 μg/m³. OC/EC ratios ranged from 1.80 to 5.84, with the average being 3.37±0.95, suggesting the presence of secondary organic aerosols in atmosphere. Results of principal component analysis showed that major sources of carbonaceous aerosols include gasoline-and diesel-fueled vehicles, secondary aerosols and biomass burning.

Original language	English
Pages (from-to)	888-893
Number of pages	6
Journal	Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture & Technology
Volume	46
Issue number	6
State	Published - 1 Dec 2014

Keywords

Elemental carbon (EC)
Organic carbon (OC)
PM
Xi'an

Cite this

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title = "Characteristics of PM2.5 and carbonaceous aerosols in Xi'an",

abstract = "Daily PM2.5, organic carbon (OC), and elemental carbon (EC) were measured during 2012.3-2013.2 to study the temporal variations of PM2.5 and carbonaceous aerosols. PM2.5 showed a fluctuation from 26.9 to 505.1 μg/m3 during the sampling period. The annual average PM2.5 mass concentration was 114.0±86.6 μg/m3, exceeding the Chinese air quality standard (GB 3095-2012) for PM2.5 (35 μg/m3) by a factor of 3.3. The seasonal patterns ranked in descending order as follows, winter>autumn>spring>summer. The average concentrations for OC and EC were 21.44±15.76 and 6.16±3.38 μg/m3. OC/EC ratios ranged from 1.80 to 5.84, with the average being 3.37±0.95, suggesting the presence of secondary organic aerosols in atmosphere. Results of principal component analysis showed that major sources of carbonaceous aerosols include gasoline-and diesel-fueled vehicles, secondary aerosols and biomass burning.",

keywords = "Elemental carbon (EC), Organic carbon (OC), PM, Xi'an",

author = "Yan Cheng and Weiwei Fan and Suixin Liu and Bo Xiao and Wei Guo and Wenwu Li and Ni Wang",

year = "2014",

month = dec,

day = "1",

language = "英语",

volume = "46",

pages = "888--893",

journal = "Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture \& Technology",

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publisher = "Editorial Office of Journal of Xi'an University of Architecture and Technology",

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}

TY - JOUR

T1 - Characteristics of PM2.5 and carbonaceous aerosols in Xi'an

AU - Cheng, Yan

AU - Fan, Weiwei

AU - Liu, Suixin

AU - Xiao, Bo

AU - Guo, Wei

AU - Li, Wenwu

AU - Wang, Ni

PY - 2014/12/1

Y1 - 2014/12/1

N2 - Daily PM2.5, organic carbon (OC), and elemental carbon (EC) were measured during 2012.3-2013.2 to study the temporal variations of PM2.5 and carbonaceous aerosols. PM2.5 showed a fluctuation from 26.9 to 505.1 μg/m3 during the sampling period. The annual average PM2.5 mass concentration was 114.0±86.6 μg/m3, exceeding the Chinese air quality standard (GB 3095-2012) for PM2.5 (35 μg/m3) by a factor of 3.3. The seasonal patterns ranked in descending order as follows, winter>autumn>spring>summer. The average concentrations for OC and EC were 21.44±15.76 and 6.16±3.38 μg/m3. OC/EC ratios ranged from 1.80 to 5.84, with the average being 3.37±0.95, suggesting the presence of secondary organic aerosols in atmosphere. Results of principal component analysis showed that major sources of carbonaceous aerosols include gasoline-and diesel-fueled vehicles, secondary aerosols and biomass burning.

AB - Daily PM2.5, organic carbon (OC), and elemental carbon (EC) were measured during 2012.3-2013.2 to study the temporal variations of PM2.5 and carbonaceous aerosols. PM2.5 showed a fluctuation from 26.9 to 505.1 μg/m3 during the sampling period. The annual average PM2.5 mass concentration was 114.0±86.6 μg/m3, exceeding the Chinese air quality standard (GB 3095-2012) for PM2.5 (35 μg/m3) by a factor of 3.3. The seasonal patterns ranked in descending order as follows, winter>autumn>spring>summer. The average concentrations for OC and EC were 21.44±15.76 and 6.16±3.38 μg/m3. OC/EC ratios ranged from 1.80 to 5.84, with the average being 3.37±0.95, suggesting the presence of secondary organic aerosols in atmosphere. Results of principal component analysis showed that major sources of carbonaceous aerosols include gasoline-and diesel-fueled vehicles, secondary aerosols and biomass burning.

KW - Elemental carbon (EC)

KW - Organic carbon (OC)

KW - PM

KW - Xi'an

UR - https://www.scopus.com/pages/publications/84922353926

M3 - 文章

AN - SCOPUS:84922353926

SN - 1006-7930

VL - 46

SP - 888

EP - 893

JO - Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture & Technology

JF - Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture & Technology

IS - 6

ER -

Characteristics of PM_2.5 and carbonaceous aerosols in Xi'an

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Keywords

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