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Xu K, Liu Y, Li C, Zhang C, Liu X, Li Q, Xiong M, Zhang Y, Yin S, Ding Y. Enhanced secondary organic aerosol formation during dust episodes by photochemical reactions in the winter in Wuhan. J Environ Sci (China) 2023; 133:70-82. [PMID: 37451790 DOI: 10.1016/j.jes.2022.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/23/2022] [Accepted: 04/10/2022] [Indexed: 07/18/2023]
Abstract
To investigate the effect of frequently occurring mineral dust on the formation of secondary organic aerosol (SOA), 106 volatile organic compounds (VOCs), trace gas pollutants and chemical components of PM2.5 were measured continuously in January 2021 in Wuhan, Central China. The observation period was divided into two stages that included a haze period and a following dust period, based on the ratio of PM2.5 and PM10 concentrations. The average ratio of secondary organic carbon (SOC) to elemental carbon (EC) was 1.98 during the dust period, which was higher than that during the haze period (0.69). The contribution of SOA to PM2.5 also increased from 2.75% to 8.64%. The analysis of the relationships between the SOA and relative humidity (RH) and the odd oxygen (e.g., OX = O3 + NO2) levels suggested that photochemical reactions played a more important role in the enhancement of SOA production during the dust period than the aqueous-phase reactions. The heterogeneous photochemical production of OH radicals in the presence of metal oxides during the dust period was believed to be enhanced. Meanwhile, the ratios of trans-2-butene to cis-2-butene and m-/p-xylene to ethylbenzene (X/E) dropped significantly, confirming that stronger photochemical reactions occurred and SOA precursors formed efficiently. These results verified the laboratory findings that metal oxides in mineral dust could catalyse the oxidation of VOCs and induce higher SOA production.
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Affiliation(s)
- Kai Xu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yafei Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Chenlu Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Chen Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xingang Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Qijie Li
- Wuhan Municipality Environmental Monitoring Center, Wuhan 430015, China
| | - Min Xiong
- College of Environment and Ecology, Chongqing University, Chongqing 400030, China
| | - Yujun Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Shijie Yin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yu Ding
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
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2
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Liu D, Xu S, Lang Y, Hou S, Wei L, Pan X, Sun Y, Wang Z, Kawamura K, Fu P. Size distributions of molecular markers for biogenic secondary organic aerosol in urban Beijing. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121569. [PMID: 37028792 DOI: 10.1016/j.envpol.2023.121569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/05/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
To understand the source, formation, and seasonality of biogenic secondary organic aerosol (BSOA), a nine-stage cascade impactor was utilized to collect size-segregated particulate samples from April 2017 to January 2018 in Beijing, China. BSOA tracers derived from isoprene, monoterpene, and sesquiterpene were measured with gas chromatography-mass spectrometry. Isoprene and monoterpene SOA tracers exhibited significant seasonal variations, with a summer maximum and a winter minimum. Dominance of 2-methyltetrols (isoprene SOA tracers) with a good correlation with levoglucosan (a biomass burning tracer), which was combined with the detection of methyltartaric acids (possible indicators for aged isoprene) in summer, implies possible biomass burning and long-range transport. In contrast, sesquiterpene SOA tracer (β-caryophyllinic acid) was dominant in winter and was probably associated with the local burning of biomass. Bimodal size distributions were observed for most isoprene SOA tracers, consistent with previous laboratory experiments and field studies showing that they can be formed not only in the aerosol phase but also in the gas phase. Monoterpene SOA tracers cis-pinonic acid and pinic acid showed a coarse-mode peak (5.8-9.0 μm) in four seasons due to their volatile nature. Sesquiterpene SOA tracer β-caryophyllinic acid showed a unimodal pattern with a major fine-mode peak (1.1-2.1 μm), which is linked to local biomass burning. The tracer-yield method was used to quantify the contributions of isoprene, monoterpene, and sesquiterpene to secondary organic carbon (SOC) and SOA. The highest isoprene SOC and SOA concentrations occurred in summer (2.00 μgC m-3 and 4.93 μg m-3, respectively), contributing to 1.61% of OC and 5.22% of PM2.5, respectively. These results suggest that BSOA tracers are promising tracers for understanding the source, formation, and seasonality of BSOA.
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Affiliation(s)
- Di Liu
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Shaofeng Xu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Yunchao Lang
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Shengjie Hou
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Lianfang Wei
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Xiaole Pan
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Yele Sun
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Zifa Wang
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Kimitaka Kawamura
- Chubu Institute for Advanced Studies, Chubu University, Kasugai, 487-8501, Japan
| | - Pingqing Fu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China.
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Upshur MA, Bé AG, Luo J, Varelas JG, Geiger FM, Thomson RJ. Organic synthesis in the study of terpene-derived oxidation products in the atmosphere. Nat Prod Rep 2023; 40:890-921. [PMID: 36938683 DOI: 10.1039/d2np00064d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Covering: 1997 up to 2022Volatile biogenic terpenes involved in the formation of secondary organic aerosol (SOA) particles participate in rich atmospheric chemistry that impacts numerous aspects of the earth's complex climate system. Despite the importance of these species, understanding their fate in the atmosphere and determining their atmospherically-relevant properties has been limited by the availability of authentic standards and probe molecules. Advances in synthetic organic chemistry directly aimed at answering these questions have, however, led to exciting discoveries at the interface of chemistry and atmospheric science. Herein we provide a review of the literature regarding the synthesis of commercially unavailable authentic standards used to analyze the composition, properties, and mechanisms of SOA particles in the atmosphere.
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Affiliation(s)
- Mary Alice Upshur
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Ariana Gray Bé
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Jingyi Luo
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Jonathan G Varelas
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Franz M Geiger
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Regan J Thomson
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
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Wang S, Zhao Y, Chan AWH, Yao M, Chen Z, Abbatt JPD. Organic Peroxides in Aerosol: Key Reactive Intermediates for Multiphase Processes in the Atmosphere. Chem Rev 2023; 123:1635-1679. [PMID: 36630720 DOI: 10.1021/acs.chemrev.2c00430] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Organic peroxides (POs) are organic molecules with one or more peroxide (-O-O-) functional groups. POs are commonly regarded as chemically labile termination products from gas-phase radical chemistry and therefore serve as temporary reservoirs for oxidative radicals (HOx and ROx) in the atmosphere. Owing to their ubiquity, active gas-particle partitioning behavior, and reactivity, POs are key reactive intermediates in atmospheric multiphase processes determining the life cycle (formation, growth, and aging), climate, and health impacts of aerosol. However, there remain substantial gaps in the origin, molecular diversity, and fate of POs due to their complex nature and dynamic behavior. Here, we summarize the current understanding on atmospheric POs, with a focus on their identification and quantification, state-of-the-art analytical developments, molecular-level formation mechanisms, multiphase chemical transformation pathways, as well as environmental and health impacts. We find that interactions with SO2 and transition metal ions are generally the fast PO transformation pathways in atmospheric liquid water, with lifetimes estimated to be minutes to hours, while hydrolysis is particularly important for α-substituted hydroperoxides. Meanwhile, photolysis and thermolysis are likely minor sinks for POs. These multiphase PO transformation pathways are distinctly different from their gas-phase fates, such as photolysis and reaction with OH radicals, which highlights the need to understand the multiphase partitioning of POs. By summarizing the current advances and remaining challenges for the investigation of POs, we propose future research priorities regarding their origin, fate, and impacts in the atmosphere.
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Affiliation(s)
- Shunyao Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai200444, China
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, OntarioM5S 3E5, Canada
| | - Yue Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China
| | - Arthur W H Chan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, OntarioM5S 3E5, Canada
- School of the Environment, University of Toronto, Toronto, OntarioM5S 3E8, Canada
| | - Min Yao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China
| | - Zhongming Chen
- State Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing100871, China
| | - Jonathan P D Abbatt
- Department of Chemistry, University of Toronto, Toronto, OntarioM5S 3H6, Canada
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5
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Zhang Y, Cheng M, Gao J, Li J. Review of the influencing factors of secondary organic aerosol formation and aging mechanism based on photochemical smog chamber simulation methods. J Environ Sci (China) 2023; 123:545-559. [PMID: 36522014 DOI: 10.1016/j.jes.2022.10.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
The formation and aging mechanism of secondary organic aerosol (SOA) and its influencing factors have attracted increasing attention in recent years because of their effects on climate change, atmospheric quality and human health. However, there are still large errors between air quality model simulation results and field observations. The currently undetected components during the formation and aging of SOA due to the limitation of current monitoring techniques and the interactions among multiple SOA formation influencing factors might be the main reasons for the differences. In this paper, we present a detailed review of the complex dynamic physical and chemical processes and the corresponding influencing factors involved in SOA formation and aging. And all these results were mainly based the studies of photochemical smog chamber simulation. Although the properties of precursor volatile organic compounds (VOCs), oxidants (such as OH radicals), and atmospheric environmental factors (such as NOx, SO2, NH3, light intensity, temperature, humidity and seed aerosols) jointly influence the products and yield of SOA, the nucleation and vapor pressure of these products were found to be the most fundamental aspects when interpreting the dynamics of the SOA formation and aging process. The development of techniques for measuring intermediate species in SOA generation processes and the study of SOA generation and aging mechanism in complex systems should be important topics of future SOA research.
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Affiliation(s)
- Yujie Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Miaomiao Cheng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jian Gao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Junling Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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6
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Takeuchi M, Berkemeier T, Eris G, Ng NL. Non-linear effects of secondary organic aerosol formation and properties in multi-precursor systems. Nat Commun 2022; 13:7883. [PMID: 36550126 PMCID: PMC9780343 DOI: 10.1038/s41467-022-35546-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Secondary organic aerosol (SOA) contributes significantly to ambient fine particulate matter that affects climate and human health. Monoterpenes represent an important class of biogenic volatile organic compounds (VOCs) and their oxidation by nitrate radicals poses a substantial source of SOA globally. Here, we investigate the formation and properties of SOA from nitrate radical oxidation of two common monoterpenes, α-pinene and limonene. When two monoterpenes are oxidized simultaneously, we observe a ~50% enhancement in the formation of SOA from α-pinene and a ~20% reduction in limonene SOA formation. The change in SOA yields is accompanied by pronounced changes in aerosol chemical composition and volatility. These non-linear effects are not observed in a sequential oxidation experiment. Our results highlight that unlike currently assumed in atmospheric models, the interaction of products formed from individual VOCs should be accounted for to accurately describe SOA formation and its climate and health impacts.
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Affiliation(s)
- Masayuki Takeuchi
- grid.213917.f0000 0001 2097 4943School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - Thomas Berkemeier
- grid.213917.f0000 0001 2097 4943School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA ,grid.419509.00000 0004 0491 8257Present Address: Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128 Germany
| | - Gamze Eris
- grid.213917.f0000 0001 2097 4943School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - Nga Lee Ng
- grid.213917.f0000 0001 2097 4943School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA ,grid.213917.f0000 0001 2097 4943School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA ,grid.213917.f0000 0001 2097 4943School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332 USA
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7
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Siemens K, Morales A, He Q, Li C, Hettiyadura APS, Rudich Y, Laskin A. Molecular Analysis of Secondary Brown Carbon Produced from the Photooxidation of Naphthalene. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3340-3353. [PMID: 35231168 DOI: 10.1021/acs.est.1c03135] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We investigate the chemical composition of organic light-absorbing components, also known as brown carbon (BrC) chromophores, formed in a proxy of anthropogenic secondary organic aerosol generated from the photooxidation of naphthalene (naph-SOA) in the absence and presence of NOx. High-performance liquid chromatography equipped with a photodiode array detector and electrospray ionization high-resolution mass spectrometer is employed to characterize naph-SOA and its BrC components. We provide molecular-level insights into the chemical composition and optical properties of individual naph-SOA components and investigate their BrC relevance. This work reveals the formation of strongly absorbing nitro-aromatic chromophores under high-NOx conditions and describes their degradation during atmospheric aging. NOx addition enhanced the light absorption of naph-SOA while reducing wavelength-dependence, as seen by the mass absorption coefficient (MAC) and absorption Ångström exponent (AAE). Optical parameters of naph-SOA generated under low- and high-NOx conditions showed a range of values from MACOM 405nm ∼ 0.12 m2 g-1 and AAE300-450nm ∼ 8.87 (low-NOx) to MACOM 405nm ∼ 0.19 m2 g-1 and AAE300-450nm ∼ 7.59 (high-NOx), consistent with "very weak" and "weak" BrC optical classes, respectively. The weak-BrC class is commonly attributed to biomass smoldering emissions, which appear to have optical properties comparable with the naph-SOA. Molecular chromophores contributing to naphthalene BrC absorption were identified with substantial nitro-aromatics, indicating that these species may be used as source-specific markers of BrC related to the anthropogenic emissions.
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Affiliation(s)
- Kyla Siemens
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Ana Morales
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Quanfu He
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Chunlin Li
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Anusha P S Hettiyadura
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Yinon Rudich
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Alexander Laskin
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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8
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Liu C, Chen D, Chen X. Atmospheric Reactivity of Methoxyphenols: A Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:2897-2916. [PMID: 35188384 DOI: 10.1021/acs.est.1c06535] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Methoxyphenols emitted from lignin pyrolysis are widely used as potential tracers for biomass burning, especially for wood burning. In the past ten years, their atmospheric reactivity has attracted increasing attention from the academic community. Thus, this work provides an extensive review of the atmospheric reactivity of methoxyphenols, including their gas-phase, particle-phase, and aqueous-phase reactions, as well as secondary organic aerosol (SOA) formation. Emphasis was placed on kinetics, mechanisms, and SOA formation. The reactions of methoxyphenols with OH and NO3 radicals were the predominant degradation pathways, which also had significant SOA formation potentials. The reaction mechanism of methoxyphenols with O3 is the cycloaddition of O3 to the benzene ring or unsaturated C═C bond, while H-abstraction and radical adduct formation are the main degradation channels of methoxyphenols by OH and NO3 radicals. Based on the published studies, knowledge gaps were pointed out. Future studies including experimental simulations and theoretical calculations of other representative kinds of methoxyphenols should be systematically carried out under complex pollution conditions. In addition, the ecotoxicity of their degradation products and their contribution to SOA formation from the atmospheric aging of biomass-burning plumes should be seriously assessed.
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Affiliation(s)
- Changgeng Liu
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, P.R. China
| | - Dandan Chen
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, P.R. China
| | - Xiao'e Chen
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, P.R. China
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9
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Klyta J, Czaplicka M. Determination of secondary organic aerosol in particulate matter – Short review. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Zhang Q, Shen Z, Zhang L, Zeng Y, Ning Z, Zhang T, Lei Y, Wang Q, Li G, Sun J, Westerdahl D, Xu H, Cao J. Investigation of Primary and Secondary Particulate Brown Carbon in Two Chinese Cities of Xi'an and Hong Kong in Wintertime. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3803-3813. [PMID: 32150391 DOI: 10.1021/acs.est.9b05332] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Brown carbon (BrC), an aerosol carbonaceous matter component, impacts atmospheric radiation and global climate because of its absorption in the near-ultraviolet-visible region. Simultaneous air sampling was conducted in two megacities of Xi'an (northern) and Hong Kong (southern) in China in winter of 2016-2017. The aim of this study is to determine and characterize the BrC compounds in collected filter samples. Characteristic absorption peaks corresponding to aromatic C-C stretching bands, organo-nitrates, and C═O functional groups were seen in spectra of Xi'an samples, suggesting that the BrC was derived from freshly smoldering biomass and coal combustion as well as aqueous formation of anthropogenic secondary organic carbon. In Hong Kong, the light absorption of secondary BrC accounted for 76% of the total absorbances of BrC. The high abundance of strong C═O groups, biogenic volatile organic compounds (BVOCs) and atmospheric oxidants suggest secondary BrC was likely formed from photochemical oxidation of BVOCs in Hong Kong. Several representative BrC molecular markers were detected using Fourier transform ion cyclotron resonance mass spectrometry and their absorption properties were simulated by quantum chemistry. The results demonstrate that light absorption capacities of secondary anthropogenic BrC with nitro-functional groups were stronger than those of biogenic secondary BrC and anthropogenic primary BrC.
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Affiliation(s)
- Qian Zhang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhenxing Shen
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
- Key Lab of Aerosol Chemistry & Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Leiming Zhang
- Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, Canada
| | - Yaling Zeng
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhi Ning
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Tian Zhang
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yali Lei
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Qiyuan Wang
- Key Lab of Aerosol Chemistry & Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Guohui Li
- Key Lab of Aerosol Chemistry & Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Jian Sun
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Dane Westerdahl
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Hongmei Xu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Junji Cao
- Key Lab of Aerosol Chemistry & Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
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Liakakou E, Kaskaoutis DG, Grivas G, Stavroulas I, Tsagkaraki M, Paraskevopoulou D, Bougiatioti A, Dumka UC, Gerasopoulos E, Mihalopoulos N. Long-term brown carbon spectral characteristics in a Mediterranean city (Athens). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:135019. [PMID: 31791764 DOI: 10.1016/j.scitotenv.2019.135019] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/02/2019] [Accepted: 10/15/2019] [Indexed: 05/19/2023]
Abstract
This study analyses 4-years of continuous 7-λ Aethalometer (AE-33) measurements in an urban-background environment of Athens, to resolve the spectral absorption coefficients (babs) for black carbon (BC) and brown carbon (BrC). An important BrC contribution (23.7 ± 11.6%) to the total babs at 370 nm is estimated for the period May 2015-April 2019, characterized by a remarkable seasonality with winter maximum (33.5 ± 13.6%) and summer minimum (18.5 ± 8.1%), while at longer wavelengths the BrC contribution is significantly reduced (6.8 ± 3.6% at 660 nm). The wavelength dependence of the total babs gives an annual-mean AAE370-880 of 1.31, with higher values in winter night-time. The BrC absorption and its contribution to babs presents a large increase reaching up to 39.1 ± 13.6% during winter nights (370 nm), suggesting residential wood burning (RWB) emissions as a dominant source for BrC. This is supported by strong correlations of the BrC absorption with OC, EC, the fragment ion m/z 60 derived from ACSM and PMF-analyzed organic fractions related to biomass burning (e.g. BBOA). In contrast, BrC absorption decreases significantly during daytime as well as in the warm period, reaching to a minimum during the early-afternoon hours in all seasons due to photo-chemical degradation. Estimated secondary BrC absorption is practically evident only during winter night-time, implying the fast oxidation of BrC species from RWB emissions. Changes in mixing-layer height do not significantly affect the BrC absorption in winter, while they play a major role in summer.
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Affiliation(s)
- E Liakakou
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece.
| | - D G Kaskaoutis
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece
| | - G Grivas
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece
| | - I Stavroulas
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece
| | - M Tsagkaraki
- Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, 71003 Crete, Greece
| | - D Paraskevopoulou
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece
| | - A Bougiatioti
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece
| | - U C Dumka
- Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital 263 001, India
| | - E Gerasopoulos
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece
| | - N Mihalopoulos
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palaia Penteli, 15236 Athens, Greece; Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, 71003 Crete, Greece.
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12
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Soleimanian E, Mousavi A, Taghvaee S, Shafer MM, Sioutas C. Impact of secondary and primary particulate matter (PM) sources on the enhanced light absorption by brown carbon (BrC) particles in central Los Angeles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135902. [PMID: 31837867 DOI: 10.1016/j.scitotenv.2019.135902] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/15/2019] [Accepted: 12/01/2019] [Indexed: 05/23/2023]
Abstract
In this study, we investigated aerosol chemical composition, spectral properties of aerosol extracts, and source contributions to the aerosol light-absorbing brown carbon (BrC) in central Los Angeles from July 2018 to March 2019, during warm and cold seasons. Spectrophotometric measurements (water and methanol extracts; 200 < λ < 1100) and chemical analyses were performed on collected particulate matter (PM), and relationships of BrC light absorption (Abs365) to source tracer chemical species were evaluated. Mass absorption efficiency (MAE) of both water and methanol extracted solutions exhibited an increasing trend from warm period to cold season, with an annual average value of 0.61 ± 0.22 m2.g-1 and 1.38 ± 0.89 m2.g-1, respectively. Principal component analysis (PCA) were coupled with multiple linear regression (MLR) to identify and quantify sources of BrC light absorption in each of the seasons. Our finding documented fossil fuel combustion as the dominant source of BrC light absorption during warm season, with relative contribution of 38% to total BrC light absorption, followed by (secondary organic aerosol) SOA (30%) and biomass burning (12%). In contrast, biomass burning was the major source of BrC during the cold season (53%), while fossil fuel combustion and SOA contributed to 18% and 12% of BrC, respectively. Significantly higher contribution of biomass burning to BrC during the cold season suggested that residential heating activities (wood burning) play a major role in increased BrC concentrations. Previously collected Aethalometer model data documented fossil fuel combustion as the dominant contributing source to >90% of BC throughout the year. Finally, the solar radiation absorption ratio of BrC to elemental carbon (EC) in the ultraviolet range (300-400 nm) was maximum during the cold season with the annual corresponding values of 13-25% and 17-29% for water- and methanol-soluble BrC, respectively; which provides further evidence of the important effect of BrC light absorption on atmospheric radiative balance.
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Affiliation(s)
- Ehsan Soleimanian
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, USA.
| | - Amirhosein Mousavi
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, USA.
| | - Sina Taghvaee
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, USA.
| | - Martin M Shafer
- University of Wisconsin-Madison, Wisconsin State Laboratory of Hygiene, Madison, WI, USA.
| | - Constantinos Sioutas
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, USA.
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13
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Srivastava D, Tomaz S, Favez O, Lanzafame GM, Golly B, Besombes JL, Alleman LY, Jaffrezo JL, Jacob V, Perraudin E, Villenave E, Albinet A. Speciation of organic fraction does matter for source apportionment. Part 1: A one-year campaign in Grenoble (France). THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 624:1598-1611. [PMID: 29275933 DOI: 10.1016/j.scitotenv.2017.12.135] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 05/07/2023]
Abstract
PM10 source apportionment was performed by positive matrix factorization (PMF) using specific primary and secondary organic molecular markers on samples collected over a one year period (2013) at an urban station in Grenoble (France). The results provided a 9-factor optimum solution, including sources rarely apportioned in the literature, such as two types of primary biogenic organic aerosols (fungal spores and plant debris), as well as specific biogenic and anthropogenic secondary organic aerosols (SOA). These sources were identified thanks to the use of key organic markers, namely, polyols, odd number higher alkanes, and several SOA markers related to the oxidation of isoprene, α-pinene, toluene and polycyclic aromatic hydrocarbons (PAHs). Primary and secondary biogenic contributions together accounted for at least 68% of the total organic carbon (OC) in the summer, while anthropogenic primary and secondary sources represented at least 71% of OC during wintertime. A very significant contribution of anthropogenic SOA was estimated in the winter during an intense PM pollution event (PM10>50μgm-3 for several days; 18% of PM10 and 42% of OC). Specific meteorological conditions with a stagnation of pollutants over 10days and possibly Fenton-like chemistry and self-amplification cycle of SOA formation could explain such high anthropogenic SOA concentrations during this period. Finally, PMF outputs were also used to investigate the origins of humic-like substances (HuLiS), which represented 16% of OC on an annual average basis. The results indicated that HuLiS were mainly associated with biomass burning (22%), secondary inorganic (22%), mineral dust (15%) and biogenic SOA (14%) factors. This study is probably the first to state that HuLiS are significantly associated with mineral dust.
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Affiliation(s)
- Deepchandra Srivastava
- INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France; CNRS, EPOC, UMR 5805 CNRS, 33405 Talence, France; Université de Bordeaux, EPOC, UMR 5805 CNRS, 33405 Talence, France
| | - Sophie Tomaz
- INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France; CNRS, EPOC, UMR 5805 CNRS, 33405 Talence, France; Université de Bordeaux, EPOC, UMR 5805 CNRS, 33405 Talence, France
| | - Olivier Favez
- INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
| | | | - Benjamin Golly
- Univ. Savoie Mont Blanc, LCME, 73000 Chambéry, France; Univ. Grenoble Alpes, CNRS, IRD, IGE, F-38000 Grenoble, France
| | | | | | | | - Véronique Jacob
- Univ. Grenoble Alpes, CNRS, IRD, IGE, F-38000 Grenoble, France
| | - Emilie Perraudin
- CNRS, EPOC, UMR 5805 CNRS, 33405 Talence, France; Université de Bordeaux, EPOC, UMR 5805 CNRS, 33405 Talence, France
| | - Eric Villenave
- CNRS, EPOC, UMR 5805 CNRS, 33405 Talence, France; Université de Bordeaux, EPOC, UMR 5805 CNRS, 33405 Talence, France
| | - Alexandre Albinet
- INERIS, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
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14
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Jiang K, Hill DR, Elrod MJ. Assessing the Potential for Oligomer Formation from the Reactions of Lactones in Secondary Organic Aerosols. J Phys Chem A 2018; 122:292-302. [DOI: 10.1021/acs.jpca.7b10411] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kallie Jiang
- Department of Chemistry and
Biochemistry, Oberlin College, Oberlin, Ohio 44074 United States
| | - Daniel R. Hill
- Department of Chemistry and
Biochemistry, Oberlin College, Oberlin, Ohio 44074 United States
| | - Matthew J. Elrod
- Department of Chemistry and
Biochemistry, Oberlin College, Oberlin, Ohio 44074 United States
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15
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Di Lorenzo RA, Washenfelder RA, Attwood AR, Guo H, Xu L, Ng NL, Weber RJ, Baumann K, Edgerton E, Young CJ. Molecular-Size-Separated Brown Carbon Absorption for Biomass-Burning Aerosol at Multiple Field Sites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:3128-3137. [PMID: 28199090 DOI: 10.1021/acs.est.6b06160] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Biomass burning is a known source of brown carbon aerosol in the atmosphere. We collected filter samples of biomass-burning emissions at three locations in Canada and the United States with transport times of 10 h to >3 days. We analyzed the samples with size-exclusion chromatography coupled to molecular absorbance spectroscopy to determine absorbance as a function of molecular size. The majority of absorption was due to molecules >500 Da, and these contributed an increasing fraction of absorption as the biomass-burning aerosol aged. This suggests that the smallest molecular weight fraction is more susceptible to processes that lead to reduced light absorption, while larger-molecular-weight species may represent recalcitrant brown carbon. We calculate that these large-molecular-weight species are composed of more than 20 carbons with as few as two oxygens and would be classified as extremely low volatility organic compounds (ELVOCs).
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Affiliation(s)
- Robert A Di Lorenzo
- Department of Chemistry, Memorial University , St. John's, Newfoundland A1B 3X5, Canada
| | - Rebecca A Washenfelder
- Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder , Boulder, Colorado 80309, United States
- Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration , Boulder, Colorado 80305, United States
| | - Alexis R Attwood
- Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder , Boulder, Colorado 80309, United States
- Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration , Boulder, Colorado 80305, United States
| | | | | | | | | | - Karsten Baumann
- Atmospheric Research & Analysis Inc. , Cary, North Carolina 27513, United States
| | - Eric Edgerton
- Atmospheric Research & Analysis Inc. , Cary, North Carolina 27513, United States
| | - Cora J Young
- Department of Chemistry, Memorial University , St. John's, Newfoundland A1B 3X5, Canada
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16
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Blair SL, MacMillan AC, Drozd GT, Goldstein AH, Chu RK, Paša-Tolić L, Shaw JB, Tolić N, Lin P, Laskin J, Laskin A, Nizkorodov SA. Molecular Characterization of Organosulfur Compounds in Biodiesel and Diesel Fuel Secondary Organic Aerosol. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:119-127. [PMID: 28005381 DOI: 10.1021/acs.est.6b03304] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Secondary organic aerosol (SOA), formed in the photooxidation of diesel fuel, biodiesel fuel, and 20% biodiesel fuel/80% diesel fuel mixture, are prepared under high-NOx conditions in the presence and absence of sulfur dioxide (SO2), ammonia (NH3), and relative humidity (RH). The composition of condensed-phase organic compounds in SOA is measured using several complementary techniques including aerosol mass spectrometry (AMS), high-resolution nanospray desorption electrospray ionization mass spectrometry (nano-DESI/HRMS), and ultrahigh resolution and mass accuracy 21T Fourier transform ion cyclotron resonance mass spectrometry (21T FT-ICR MS). Results demonstrate that sulfuric acid and condensed organosulfur species formed in photooxidation experiments with SO2 are present in the SOA particles. Fewer organosulfur species are formed in the high humidity experiments, performed at RH 90%, in comparison with experiments done under dry conditions. There is a strong overlap of organosulfur species observed in this study with previous field and chamber studies of SOA. Many MS peaks of organosulfates (R-OS(O)2OH) previously designated as biogenic or of unknown origin in field studies might have originated from anthropogenic sources, such as photooxidation of hydrocarbons present in diesel and biodiesel fuel.
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Affiliation(s)
- Sandra L Blair
- Department of Chemistry, University of California, Irvine , Irvine, California 92697, United States
| | - Amanda C MacMillan
- Department of Chemistry, University of California, Irvine , Irvine, California 92697, United States
| | - Greg T Drozd
- Department of Environmental Science, Policy, & Management, University of California, Berkeley , Berkeley, California 94720, United States
| | - Allen H Goldstein
- Department of Environmental Science, Policy, & Management, University of California, Berkeley , Berkeley, California 94720, United States
| | | | | | | | | | | | | | | | - Sergey A Nizkorodov
- Department of Chemistry, University of California, Irvine , Irvine, California 92697, United States
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17
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Isaacman-VanWertz G, Yee LD, Kreisberg NM, Wernis R, Moss JA, Hering SV, de Sá SS, Martin ST, Alexander ML, Palm BB, Hu W, Campuzano-Jost P, Day DA, Jimenez JL, Riva M, Surratt JD, Viegas J, Manzi A, Edgerton E, Baumann K, Souza R, Artaxo P, Goldstein AH. Ambient Gas-Particle Partitioning of Tracers for Biogenic Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9952-62. [PMID: 27552285 DOI: 10.1021/acs.est.6b01674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Exchange of atmospheric organic compounds between gas and particle phases is important in the production and chemistry of particle-phase mass but is poorly understood due to a lack of simultaneous measurements in both phases of individual compounds. Measurements of particle- and gas-phase organic compounds are reported here for the southeastern United States and central Amazonia. Polyols formed from isoprene oxidation contribute 8% and 15% on average to particle-phase organic mass at these sites but are also observed to have substantial gas-phase concentrations contrary to many models that treat these compounds as nonvolatile. The results of the present study show that the gas-particle partitioning of approximately 100 known and newly observed oxidation products is not well explained by environmental factors (e.g., temperature). Compounds having high vapor pressures have higher particle fractions than expected from absorptive equilibrium partitioning models. These observations support the conclusion that many commonly measured biogenic oxidation products may be bound in low-volatility mass (e.g., accretion products, inorganic-organic adducts) that decomposes to individual compounds on analysis. However, the nature and extent of any such bonding remains uncertain. Similar conclusions are reach for both study locations, and average particle fractions for a given compound are consistent within ∼25% across measurement sites.
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Affiliation(s)
- Gabriel Isaacman-VanWertz
- Department. of Environmental Science, Policy, and Management, University of California , Berkeley, California 94720, United States
| | - Lindsay D Yee
- Department. of Environmental Science, Policy, and Management, University of California , Berkeley, California 94720, United States
| | | | - Rebecca Wernis
- Department of Civil and Environmental Engineering, University of California , Berkeley, California 94720, United States
| | - Joshua A Moss
- Department. of Environmental Science, Policy, and Management, University of California , Berkeley, California 94720, United States
| | - Susanne V Hering
- Aerosol Dynamics Inc. , Berkeley, California 94710, United States
| | - Suzane S de Sá
- School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts 01451, United States
| | - Scot T Martin
- School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts 01451, United States
- Department of Earth and Planetary Sciences, Harvard University , Cambridge, Massachusetts 01451, United States
| | - M Lizabeth Alexander
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | - Brett B Palm
- Department of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado , Boulder, Colorado 80309, United States
| | - Weiwei Hu
- Department of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado , Boulder, Colorado 80309, United States
| | - Pedro Campuzano-Jost
- Department of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado , Boulder, Colorado 80309, United States
| | - Douglas A Day
- Department of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado , Boulder, Colorado 80309, United States
| | - Jose L Jimenez
- Department of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado , Boulder, Colorado 80309, United States
| | - Matthieu Riva
- Department of Environmental Sciences and Engineering, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - Jason D Surratt
- Department of Environmental Sciences and Engineering, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - Juarez Viegas
- Instituto Nacional de Pesquisas da Amazonia , Manaus, Amazonas, Brazil , 69060-001
| | - Antonio Manzi
- Instituto Nacional de Pesquisas da Amazonia , Manaus, Amazonas, Brazil , 69060-001
| | - Eric Edgerton
- Atmospheric Research & Analysis, Inc. , Cary, North Carolina 27513, United States
| | - Karsten Baumann
- Atmospheric Research & Analysis, Inc. , Cary, North Carolina 27513, United States
| | - Rodrigo Souza
- Universidade do Estado do Amazonas , Manaus, Amazonas, Brazil , 69735-000
| | - Paulo Artaxo
- Universidade de São Paulo , São Paulo, Brazil , 05508-020
| | - Allen H Goldstein
- Department. of Environmental Science, Policy, and Management, University of California , Berkeley, California 94720, United States
- Department of Civil and Environmental Engineering, University of California , Berkeley, California 94720, United States
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18
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Liu J, D'Ambro EL, Lee BH, Lopez-Hilfiker FD, Zaveri RA, Rivera-Rios JC, Keutsch FN, Iyer S, Kurten T, Zhang Z, Gold A, Surratt JD, Shilling JE, Thornton JA. Efficient Isoprene Secondary Organic Aerosol Formation from a Non-IEPOX Pathway. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9872-80. [PMID: 27548285 DOI: 10.1021/acs.est.6b01872] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
With a large global emission rate and high reactivity, isoprene has a profound effect upon atmospheric chemistry and composition. The atmospheric pathways by which isoprene converts to secondary organic aerosol (SOA) and how anthropogenic pollutants such as nitrogen oxides and sulfur affect this process are subjects of intense research because particles affect Earth's climate and local air quality. In the absence of both nitrogen oxides and reactive aqueous seed particles, we measure SOA mass yields from isoprene photochemical oxidation of up to 15%, which are factors of 2 or more higher than those typically used in coupled chemistry climate models. SOA yield is initially constant with the addition of increasing amounts of nitric oxide (NO) but then sharply decreases for input concentrations above 50 ppbv. Online measurements of aerosol molecular composition show that the fate of second-generation RO2 radicals is key to understanding the efficient SOA formation and the NOx-dependent yields described here and in the literature. These insights allow for improved quantitative estimates of SOA formation in the preindustrial atmosphere and in biogenic-rich regions with limited anthropogenic impacts and suggest that a more-complex representation of NOx-dependent SOA yields may be important in models.
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Affiliation(s)
- Jiumeng Liu
- Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory Richland, Washington 99352, United States
| | | | | | | | - Rahul A Zaveri
- Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory Richland, Washington 99352, United States
| | - Jean C Rivera-Rios
- Paulson School of Engineering and Applied Sciences and Department of Chemistry and Chemical Biology, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Frank N Keutsch
- Paulson School of Engineering and Applied Sciences and Department of Chemistry and Chemical Biology, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Siddharth Iyer
- Department of Chemistry, University of Helsinki , Helsinki FI-00014, Finland
| | - Theo Kurten
- Department of Chemistry, University of Helsinki , Helsinki FI-00014, Finland
| | - Zhenfa Zhang
- Department of Environmental Sciences and Engineering, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - Avram Gold
- Department of Environmental Sciences and Engineering, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - Jason D Surratt
- Department of Environmental Sciences and Engineering, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - John E Shilling
- Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory Richland, Washington 99352, United States
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19
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Frka S, Šala M, Kroflič A, Huš M, Čusak A, Grgić I. Quantum Chemical Calculations Resolved Identification of Methylnitrocatechols in Atmospheric Aerosols. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:5526-35. [PMID: 27136117 DOI: 10.1021/acs.est.6b00823] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Methylnitrocatechols (MNCs) are secondary organic aerosol (SOA) tracers and major contributors to atmospheric brown carbon; however, their formation and aging processes in atmospheric waters are unknown. To investigate the importance of aqueous-phase electrophilic substitution of 3-methylcatechol with nitronium ion (NO2(+)), we performed quantum calculations of their favorable pathways. The calculations predicted the formation of 3-methyl-5-nitrocatechol (3M5NC), 3-methyl-4-nitrocatechol (3M4NC), and a negligible amount of 3-methyl-6-nitrocatechol (3M6NC). MNCs in atmospheric PM2 samples were further inspected by LC/(-)ESI-MS/MS using commercial as well as de novo synthesized authentic standards. We detected 3M5NC and, for the first time, 3M4NC. In contrast to previous reports, 3M6NC was not observed. Agreement between calculated and observed 3M5NC/3M4NC ratios cannot unambiguously confirm the electrophilic mechanism as the exclusive formation pathway of MNCs in aerosol water. However, the examined nitration by NO2(+) is supported by (1) the absence of 3M6NC in the ambient aerosols analyzed and (2) the constant 3M5NC/3M4NC ratio in field aerosol samples, which indicates their common formation pathway. The magnitude of error one could make by incorrectly identifying 3M4NC as 3M6NC in ambient aerosols was also assessed, suggesting the importance of evaluating the literature regarding MNCs with special care.
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Affiliation(s)
- Sanja Frka
- Analytical Chemistry Laboratory, National Institute of Chemistry , 1000 Ljubljana, Slovenia
- Division for Marine and Environmental Research, Ruđer Bošković Institute , 10000 Zagreb, Croatia
| | - Martin Šala
- Analytical Chemistry Laboratory, National Institute of Chemistry , 1000 Ljubljana, Slovenia
| | - Ana Kroflič
- Analytical Chemistry Laboratory, National Institute of Chemistry , 1000 Ljubljana, Slovenia
| | - Matej Huš
- Laboratory of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry , 1000 Ljubljana, Slovenia
| | - Alen Čusak
- Alkemika, Ltd. , 3000 Celje, Slovenia
- Acies Bio, Ltd. , 1000 Ljubljana, Slovenia
| | - Irena Grgić
- Analytical Chemistry Laboratory, National Institute of Chemistry , 1000 Ljubljana, Slovenia
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20
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Rossignol S, Couvidat F, Rio C, Fable S, Grignion G, Pailly O, Leoz-Garziandia E, Doussin JF, Chiappini L. Organic aerosol molecular composition and gas-particle partitioning coefficients at a Mediterranean site (Corsica). J Environ Sci (China) 2016; 40:92-104. [PMID: 26969549 DOI: 10.1016/j.jes.2015.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 06/05/2023]
Abstract
Molecular speciation of atmospheric organic matter was investigated during a short summer field campaign performed in a citrus fruit field in northern Corsica (June 2011). Aimed at assessing the performance on the field of newly developed analytical protocols, this work focuses on the molecular composition of both gas and particulate phases and provides an insight into partitioning behavior of the semi-volatile oxygenated fraction. Limonene ozonolysis tracers were specifically searched for, according to gas chromatography-mass spectrometry (GC-MS) data previously recorded for smog chamber experiments. A screening of other oxygenated species present in the field atmosphere was also performed. About sixty polar molecules were positively or tentatively identified in gas and/or particle phases. These molecules comprise a wide range of branched and linear, mono and di-carbonyls (C3-C7), mono and di-carboxylic acids (C3-C18), and compounds bearing up to three functionalities. Among these compounds, some can be specifically attributed to limonene oxidation and others can be related to α- or β-pinene oxidation. This provides an original snapshot of the organic matter composition at a Mediterranean site in summer. Furthermore, for compounds identified and quantified in both gaseous and particulate phases, an experimental gas/particle partitioning coefficient was determined. Several volatile products, which are not expected in the particulate phase assuming thermodynamic equilibrium, were nonetheless present in significant concentrations. Hypotheses are proposed to explain these observations, such as the possible aerosol viscosity that could hinder the theoretical equilibrium to be rapidly reached.
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Affiliation(s)
- Stéphanie Rossignol
- Institut National de l'Environnement Industriel et des Risques (INERIS), 60 550 Verneuil-en-Halatte, France; LISA, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, France
| | - Florian Couvidat
- CEREA, Joint LaboratoryEcole des Ponts ParisTech/EDF R&D, Université Paris-Est, 77455 Marne la Vallée, France
| | - Caroline Rio
- Institut National de l'Environnement Industriel et des Risques (INERIS), 60 550 Verneuil-en-Halatte, France
| | - Sébastien Fable
- Institut National de l'Environnement Industriel et des Risques (INERIS), 60 550 Verneuil-en-Halatte, France
| | | | - Olivier Pailly
- Institut National de la Recherche Agronomique (INRA), 20230 San Giuliano, Corse, France
| | - Eva Leoz-Garziandia
- Institut National de l'Environnement Industriel et des Risques (INERIS), 60 550 Verneuil-en-Halatte, France
| | - Jean-Francois Doussin
- LISA, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, France.
| | - Laura Chiappini
- Institut National de l'Environnement Industriel et des Risques (INERIS), 60 550 Verneuil-en-Halatte, France
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21
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Chu B, Liu T, Zhang X, Liu Y, Ma Q, Ma J, He H, Wang X, Li J, Hao J. Secondary aerosol formation and oxidation capacity in photooxidation in the presence of Al2O3 seed particles and SO2. Sci China Chem 2015. [DOI: 10.1007/s11426-015-5456-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Affiliation(s)
| | | | - Sergey A. Nizkorodov
- Department
of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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23
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Lund AK, Doyle-Eisele M, Lin YH, Arashiro M, Surratt JD, Holmes T, Schilling KA, Seinfeld JH, Rohr AC, Knipping EM, McDonald JD. The effects of α-pinene versus toluene-derived secondary organic aerosol exposure on the expression of markers associated with vascular disease. Inhal Toxicol 2013; 25:309-24. [PMID: 23742109 DOI: 10.3109/08958378.2013.782080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To investigate the toxicological effects of biogenic- versus anthropogenic-source secondary organic aerosol (SOA) on the cardiovascular system, the Secondary Particulate Health Effects Research program irradiation chamber was used to expose atherosclerotic apolipoprotein E null (Apo E-/-) mice to SOA from the oxidation of either α-pinene or toluene for 7 days. SOA atmospheres were produced to yield 250-300 μg/m(3) of particulate matter and ratios of 10:1:1 α-pinene:nitrogen oxide (NOx):ammonia (NH3); 10:1:1:1 α-pinene:NOx:NH3:sulfur dioxide (SO2) or 10:1:1 toluene:NOx:NH3; and 10:1:1:1 toluene:NOx:NH3:SO2. Resulting effects on the cardiovascular system were assessed by measurement of vascular lipid peroxidation (thiobarbituric acid reactive substance (TBARS)), as well as quantification of heme-oxygenase (HO)-1, endothelin (ET)-1, and matrix metalloproteinase (MMP)-9 mRNA expression for comparison to previous program exposure results. Consistent with similar previous studies, vascular TBARS were not increased significantly with any acute SOA exposure. However, vascular HO-1, MMP-9, and ET-1 observed in Apo E-/- mice exposed to α-pinene + NOx + NH3 + SO2 increased statistically, while α-pinene + NOx + NH3 exposure to either toluene + NOx + NH3 or toluene +NOx + NH3 + SO2 resulted in a decreased expression of these vascular factors. Such findings suggest that the specific chemistry created by the presence or absence of acidic components may be important in SOA-mediated toxicity in the cardiovascular system and/or progression of cardiovascular disease.
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Affiliation(s)
- Amie K Lund
- Lovelace Respiratory Research Institute , Albuquerque, NM 87108, USA
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24
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Lee AKY, Zhao R, Li R, Liggio J, Li SM, Abbatt JPD. Formation of light absorbing organo-nitrogen species from evaporation of droplets containing glyoxal and ammonium sulfate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:12819-12826. [PMID: 24156773 DOI: 10.1021/es402687w] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In the atmosphere, volatile organic compounds such as glyoxal can partition into aqueous droplets containing significant levels of inorganic salts. Upon droplet evaporation, both the organics and inorganic ions become highly concentrated, accelerating reactions between them. To demonstrate this process, we investigated the formation of organo-nitrogen and light absorbing materials in evaporating droplets containing glyoxal and different ammonium salts including (NH4)2SO4, NH4NO3, and NH4Cl. Our results demonstrate that evaporating glyoxal-(NH4)2SO4 droplets produce light absorbing species on a time scale of seconds, which is orders of magnitude faster than observed in bulk solutions. Using aerosol mass spectrometry, we show that particle-phase organics with high N:C ratios were formed when ammonium salts were used, and that the presence of sulfate ions promoted this chemistry. Since sulfate can also significantly enhance the Henry's law partitioning of glyoxal, our results highlight the atmospheric importance of such inorganic-organic interactions in aqueous phase aerosol chemistry.
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Affiliation(s)
- Alex K Y Lee
- Department of Chemistry, University of Toronto , Toronto, Canada
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25
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Budisulistiorini SH, Canagaratna MR, Croteau PL, Marth WJ, Baumann K, Edgerton ES, Shaw SL, Knipping EM, Worsnop DR, Jayne JT, Gold A, Surratt JD. Real-time continuous characterization of secondary organic aerosol derived from isoprene epoxydiols in downtown Atlanta, Georgia, using the Aerodyne Aerosol Chemical Speciation Monitor. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5686-94. [PMID: 23638946 DOI: 10.1021/es400023n] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Real-time continuous chemical measurements of fine aerosol were made using an Aerodyne Aerosol Chemical Speciation Monitor (ACSM) during summer and fall 2011 in downtown Atlanta, Georgia. Organic mass spectra measured by the ACSM were analyzed by positive matrix factorization (PMF), yielding three conventional factors: hydrocarbon-like organic aerosol (HOA), semivolatile oxygenated organic aerosol (SV-OOA), and low-volatility oxygenated organic aerosol (LV-OOA). An additional OOA factor that contributed to 33 ± 10% of the organic mass was resolved in summer. This factor had a mass spectrum that strongly correlated (r(2) = 0.74) to that obtained from laboratory-generated secondary organic aerosol (SOA) derived from synthetic isoprene epoxydiols (IEPOX). Time series of this additional factor is also well correlated (r(2) = 0.59) with IEPOX-derived SOA tracers from filters collected in Atlanta but less correlated (r(2) < 0.3) with a methacrylic acid epoxide (MAE)-derived SOA tracer, α-pinene SOA tracers, and a biomass burning tracer (i.e., levoglucosan), and primary emissions. Our analyses suggest IEPOX as the source of this additional factor, which has some correlation with aerosol acidity (r(2) = 0.3), measured as H(+) (nmol m(-3)), and sulfate mass loading (r(2) = 0.48), consistent with prior work showing that these two parameters promote heterogeneous chemistry of IEPOX to form SOA.
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Affiliation(s)
- Sri Hapsari Budisulistiorini
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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26
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Lin YH, Zhang H, Pye HOT, Zhang Z, Marth WJ, Park S, Arashiro M, Cui T, Budisulistiorini SH, Sexton KG, Vizuete W, Xie Y, Luecken DJ, Piletic IR, Edney EO, Bartolotti LJ, Gold A, Surratt JD. Epoxide as a precursor to secondary organic aerosol formation from isoprene photooxidation in the presence of nitrogen oxides. Proc Natl Acad Sci U S A 2013; 110:6718-23. [PMID: 23553832 PMCID: PMC3637755 DOI: 10.1073/pnas.1221150110] [Citation(s) in RCA: 222] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Isoprene is a substantial contributor to the global secondary organic aerosol (SOA) burden, with implications for public health and the climate system. The mechanism by which isoprene-derived SOA is formed and the influence of environmental conditions, however, remain unclear. We present evidence from controlled smog chamber experiments and field measurements that in the presence of high levels of nitrogen oxides (NO(x) = NO + NO2) typical of urban atmospheres, 2-methyloxirane-2-carboxylic acid (methacrylic acid epoxide, MAE) is a precursor to known isoprene-derived SOA tracers, and ultimately to SOA. We propose that MAE arises from decomposition of the OH adduct of methacryloylperoxynitrate (MPAN). This hypothesis is supported by the similarity of SOA constituents derived from MAE to those from photooxidation of isoprene, methacrolein, and MPAN under high-NOx conditions. Strong support is further derived from computational chemistry calculations and Community Multiscale Air Quality model simulations, yielding predictions consistent with field observations. Field measurements taken in Chapel Hill, North Carolina, considered along with the modeling results indicate the atmospheric significance and relevance of MAE chemistry across the United States, especially in urban areas heavily impacted by isoprene emissions. Identification of MAE implies a major role of atmospheric epoxides in forming SOA from isoprene photooxidation. Updating current atmospheric modeling frameworks with MAE chemistry could improve the way that SOA has been attributed to isoprene based on ambient tracer measurements, and lead to SOA parameterizations that better capture the dependency of yield on NO(x).
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Affiliation(s)
- Ying-Hsuan Lin
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Haofei Zhang
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Havala O. T. Pye
- National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711; and
| | - Zhenfa Zhang
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Wendy J. Marth
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Sarah Park
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Maiko Arashiro
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Tianqu Cui
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Sri Hapsari Budisulistiorini
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Kenneth G. Sexton
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - William Vizuete
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Ying Xie
- National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711; and
| | - Deborah J. Luecken
- National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711; and
| | - Ivan R. Piletic
- National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711; and
| | - Edward O. Edney
- National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711; and
| | | | - Avram Gold
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Jason D. Surratt
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
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27
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Zhang X, Lin YH, Surratt JD, Weber RJ. Sources, composition and absorption Ångström exponent of light-absorbing organic components in aerosol extracts from the Los Angeles Basin. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:3685-93. [PMID: 23506531 DOI: 10.1021/es305047b] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We investigate the sources, chemical composition, and spectral properties of light-absorbing organic aerosol extracts (i.e., brown carbon, or BrC) in the Los Angeles (LA) Basin during the CalNex-2010 field campaign. Light absorption of PM2.5 water-soluble components at 365 nm (Abs365), used as a proxy for water-soluble BrC, was well correlated with water-soluble organic carbon (WSOC) (r(2) = 0.55-0.65), indicating secondary organic aerosol (SOA) formation from anthropogenic emissions was the major source of water-soluble BrC in this region. Normalizing Abs365 to WSOC mass yielded an average solution mass absorption efficiency (MAE365) of 0.71 m(2) g(-1) C. Detailed chemical speciation of filter extracts identified eight nitro-aromatic compounds that were correlated with Abs365. These compounds accounted for ∼4% of the overall water-soluble BrC absorption. Methanol-extracted BrC in LA was approximately 3 and 21 times higher than water-soluble BrC at 365 and 532 nm, respectively, and had a MAE365 of 1.58 m(2) g(-1) C (Abs365 normalized to organic carbon mass). The water-insoluble BrC was strongly correlated with ambient elemental carbon concentration, suggesting similar sources. Absorption Ångström exponent (Å(a)) (fitted between 300 and 600 nm wavelengths) was 3.2 (±1.2) for the PILS water-soluble BrC measurement, compared to 4.8 (±0.5) and 7.6 (±0.5) for methanol- and water-soluble BrC from filter extracts, respectively. These results show that fine particle BrC was prevalent in the LA basin during CalNex, yet many of its properties and potential impacts remain unknown.
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Affiliation(s)
- Xiaolu Zhang
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
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28
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A chromatographic method to analyze products from photo-oxidation of anthropogenic and biogenic mixtures of volatile organic compounds in smog chambers. Talanta 2013; 106:20-8. [DOI: 10.1016/j.talanta.2012.11.081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 11/28/2012] [Accepted: 11/30/2012] [Indexed: 11/18/2022]
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29
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Liu S, Ahlm L, Day DA, Russell LM, Zhao Y, Gentner DR, Weber RJ, Goldstein AH, Jaoui M, Offenberg JH, Kleindienst TE, Rubitschun C, Surratt JD, Sheesley RJ, Scheller S. Secondary organic aerosol formation from fossil fuel sources contribute majority of summertime organic mass at Bakersfield. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012jd018170] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Nguyen TB, Lee PB, Updyke KM, Bones DL, Laskin J, Laskin A, Nizkorodov SA. Formation of nitrogen- and sulfur-containing light-absorbing compounds accelerated by evaporation of water from secondary organic aerosols. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd016944] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Pratt KA, Prather KA. Mass spectrometry of atmospheric aerosols--recent developments and applications. Part I: Off-line mass spectrometry techniques. MASS SPECTROMETRY REVIEWS 2012; 31:1-16. [PMID: 21442634 DOI: 10.1002/mas.20322] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2009] [Revised: 08/19/2010] [Accepted: 08/19/2010] [Indexed: 05/30/2023]
Abstract
Many of the significant advances in our understanding of atmospheric particles can be attributed to the application of mass spectrometry. Mass spectrometry provides high sensitivity with a fast response time to probe chemically complex particles. This review focuses on recent developments and applications in the field of mass spectrometry of atmospheric aerosols. In Part I of this two-part review, we concentrate on off-line mass spectrometry techniques, which require sample collection on filters but can provide detailed molecular speciation. In particular, off-line mass spectrometry techniques utilizing tandem mass spectrometry experiments and high resolution mass analyzers provide improved insight into secondary organic aerosol formation and heterogeneous reaction pathways through detailed structural elucidation at the molecular level.
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Affiliation(s)
- Kerri A Pratt
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA
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32
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Fu P, Kawamura K, Chen J, Barrie LA. Isoprene, monoterpene, and sesquiterpene oxidation products in the high Arctic aerosols during late winter to early summer. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:4022-4028. [PMID: 19569325 DOI: 10.1021/es803669a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Oxidation products of biogenic volatile organic compounds (BVOCs) (isoprene, monoterpenes, and sesquiterpene) were investigated in the Canadian High Arctic aerosols using gas chromatography-mass spectrometry. Twelve specific secondary organic aerosol (SOA) tracers and two hydroxyacids (glycolic and salicylic acids) were determined. The total concentrations of alpha-/beta-pinene oxidation products (e.g., pinic and 3-hydroxyglutaric acids, 138-5303 pg m(-3), average 1646 pg m(-3)) were much higher than those of isoprene oxidation products (e.g., 2-methyltetrols and 2-methylglyceric acid, 80-567 pg m(-3), 300 pg m(-3)) and sesquiterpene (beta-caryophyllene) oxidation product (beta-caryophyllinic acid, 9-372 pg m(-3), 120 pg m(-3)). Although the mean contribution of isoprene oxidation products to organic carbon (OC) is very low (0.059%) compared to monoterpene oxidation products (0.29%), they increase significantly up to 0.20% in early summer when photochemical activity and atmospheric transport from North America are enhanced. Temporal variations of SOA tracers of monoterpenes and beta-caryophyllene are characterized by a winter/spring maximum and a summer minimum, being similar to those of OC and EC. In contrast, the isoprene oxidation tracers such as 2-methyltetrols showed a peak in early summer. By using a tracer-based method, we found that monoterpenes and beta-caryophyllene are the major contributors to secondary OC from dark winter to late May. However in early June, isoprene was found to be the largest contributor among the three precursors. This study demonstrates that photochemical oxidation of BVOCs also contributes to the formation of OC and WSOC in the Arctic atmosphere during late winter to early summer.
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Affiliation(s)
- Pingqing Fu
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
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33
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Hu D, Bian Q, Li TWY, Lau AKH, Yu JZ. Contributions of isoprene, monoterpenes,β-caryophyllene, and toluene to secondary organic aerosols in Hong Kong during the summer of 2006. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jd010437] [Citation(s) in RCA: 138] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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