Real-Time, Single-Particle Volatility, Size, and Chemical Composition Measurements of Aged Urban Aerosols
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作者:
Pratt, Kerri A.
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Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USAUniv Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
Pratt, Kerri A.
[1
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Prather, Kimberly A.
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Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USAUniv Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
Prather, Kimberly A.
[1
,2
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机构:
[1] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
Aerosol particles undergo significant amounts of atmospheric processing within the Los Angeles basin. To assess the major sources and degree of aging, ambient particle volatility, size, and chemical composition were measured concurrently in real-time during the Study of Organic Aerosols conducted in Riverside, CA in November 2005. A thermodenuder (TD) was coupled to an aerosol time-of-flight mass spectrometer (ATOFMS) to characterize the chemistry of the individual submicrometer particles remaining after heating. Aged organic carbon (OC) particles contained >50% by volume secondary species, primarily ammonium nitrate, ammonium sulfate, and amines. At 230 degrees C, the chemistry of the 100-150 nm residues were elemental carbon (29% by number), OC (27%), and biomass burning (15%). Sea salt(47%) and dust (15%) were the major contributors at the larger sizes (750-800 nm). Many particles at 230 degrees C possessed signatures similar to those of fresh vehicle emissions, biomass burning, sea salt and dust particles, showing that the TD-ATOFMS method can be used to apportion particles in highly aged environments to their original sources, while providing insight into the relative contributions of primary and secondary species.
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Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, China
Chen, Luyao
Zhang, Junke
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Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, China
Zhang, Junke
Li, Jiaqi
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Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, China
Li, Jiaqi
Huang, Xiaojuan
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School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu,610225, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, China
Huang, Xiaojuan
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Xiang, Yuzheng
Chen, Jing
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Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, China
Chen, Jing
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Pan, Tingru
Zhang, Wei
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Sichuan Environmental Monitoring Center, Chengdu,610074, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu,611756, China
机构:
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong UniversityFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University
Luyao Chen
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Junke Zhang
Jiaqi Li
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Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong UniversityFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University
Jiaqi Li
Xiaojuan Huang
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School of Atmospheric Sciences, Chengdu University of Information TechnologyFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University
Xiaojuan Huang
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Yuzheng Xiang
Jing Chen
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Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong UniversityFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University
Jing Chen
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Tingru Pan
Wei Zhang
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Sichuan Environmental Monitoring CenterFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
Ma, Tao
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Furutani, Hiroshi
Duan, Fengkui
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Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
Duan, Fengkui
Ma, Yongliang
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Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
Ma, Yongliang
Toyoda, Michisato
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Osaka Univ, Project Res Ctr Fundamental Sci, Grad Sch Sci, Osaka 5600043, JapanTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
Toyoda, Michisato
Kimoto, Takashi
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Kimoto Elect Co Ltd, Osaka 5430024, JapanTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
Kimoto, Takashi
Huang, Tao
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Kimoto Elect Co Ltd, Osaka 5430024, JapanTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
Huang, Tao
He, Kebin
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Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Cont, State Environm Protect Key Lab Sources & Control A, Sch Environm,Beijing Key Lab Indoor Air Qual Evalu, Beijing 100084, Peoples R China
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Bi, Xinhui
Dai, Shouhui
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Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Dai, Shouhui
Zhang, Guohua
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Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Zhang, Guohua
Qiu, Ning
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Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Qiu, Ning
Li, Mei
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Jinan Univ, Atmospher Environm Inst Safety & Pollut Control, Guangzhou 510632, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Li, Mei
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Wang, Xinming
Chen, Duohong
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Guangdong Environm Monitoring Ctr, State Environm Protect Key Lab Reg Air Qual Monit, Guangzhou 510308, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chen, Duohong
Peng, Ping'an
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Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Peng, Ping'an
Sheng, Guoying
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Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Sheng, Guoying
Fu, Jiamo
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Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
Fu, Jiamo
Zhou, Zhen
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Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
Jinan Univ, Atmospher Environm Inst Safety & Pollut Control, Guangzhou 510632, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China