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Analysis of Ozone Pollution Characteristics and Influencing Factors in Northeast Economic Cooperation Region, China. ATMOSPHERE 2021. [DOI: 10.3390/atmos12070843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The increase in tropospheric ozone (O3) concentration has become one of the factors restricting urban development. This paper selected the important economic cooperation areas in Northeast China as the research object and collected the hourly monitoring data of pollutants and meteorological data in 11 cities from 1 January 2015 to 31 December 2019. The temporal and spatial variation trend of O3 concentration and the effects of meteorological factors and other pollutants, including CO (carbon monoxide), SO2 (sulfur dioxide), NO2 (nitrogen dioxide), and PM2.5 and PM10 (PM particles with aerodynamic diameters less than 2.5 μm and 10 μm) on ozone concentration were analyzed. At the same time, the variation period of O3 concentration was further analyzed by Morlet wavelet analysis. The results showed that the O3 pollution in the study area had a significant spatial correlation. The spatial distribution showed that the O3 concentration was relatively high in the south and low in the northeast. Seasonally, the O3 concentration was the highest in spring, followed by summer, and the lowest in winter. The diurnal variation of O3 concentration presented a “single peak” pattern. O3 concentration had a significant positive correlation with temperature, sunshine duration, and wind speed and a significant anticorrelation with CO, NO2, SO2, and PM2.5 concentration. Under the time scale of a = 9, 23, O3 had significant periodic fluctuation, which was similar to those of wind speed and temperature.
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Bari MA, Kindzierski WB. Ambient volatile organic compounds (VOCs) in communities of the Athabasca oil sands region: Sources and screening health risk assessment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:602-614. [PMID: 29331893 DOI: 10.1016/j.envpol.2017.12.065] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 11/26/2017] [Accepted: 12/17/2017] [Indexed: 05/16/2023]
Abstract
An investigation of ambient levels and sources of volatile organic compounds (VOCs) and associated public health risks was carried out at two northern Alberta oil sands communities (Fort McKay and Fort McMurray located < 25 km and >30 km from oil sands development, respectively) for the period January 2010-March 2015. Levels of total detected VOCs were comparatively similar at both communities (Fort McKay: geometric mean = 22.8 μg/m3, interquartile range, IQR = 13.8-41 μg/m3); (Fort McMurray: geometric mean = 23.3 μg/m3, IQR = 12.0-41 μg/m3). In general, methanol (24%-50%), alkanes (26%-32%) and acetaldehyde (23%-30%) were the predominant VOCs followed by acetone (20%-24%) and aromatics (∼9%). Mean and maximum ambient concentrations of selected hazardous VOCs were compared to health risk screening criteria used by United States regulatory agencies. The Positive matrix factorization (PMF) model was used to identify and apportion VOC sources at Fort McKay and Fort McMurray. Five sources were identified at Fort McKay, where four sources (oil sands fugitives, liquid/unburned fuel, ethylbenzene/xylene-rich and petroleum processing) were oil sands related emissions and contributed to 70% of total VOCs. At Fort McMurray six sources were identified, where local sources other than oil sands development were also observed. Contribution of aged air mass/regional transport including biomass burning emissions was ∼30% of total VOCs at both communities. Source-specific carcinogenic and non-carcinogenic risk values were also calculated and were below acceptable and safe levels of risk, except for aged air mass/regional transport (at both communities), and ethylbenzene/xylene-rich (only at Fort McMurray).
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Affiliation(s)
- Md Aynul Bari
- School of Public Health, University of Alberta, 3-57 South Academic Building, 11405-87 Avenue, Edmonton, Alberta, T6G 1C9 Canada.
| | - Warren B Kindzierski
- School of Public Health, University of Alberta, 3-57 South Academic Building, 11405-87 Avenue, Edmonton, Alberta, T6G 1C9 Canada
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Bari MA, Kindzierski WB, Spink D. Twelve-year trends in ambient concentrations of volatile organic compounds in a community of the Alberta Oil Sands Region, Canada. ENVIRONMENT INTERNATIONAL 2016; 91:40-50. [PMID: 26909813 DOI: 10.1016/j.envint.2016.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 01/19/2016] [Accepted: 02/10/2016] [Indexed: 06/05/2023]
Abstract
Environmental exposure to volatile organic compounds (VOCs) in ambient air is one of a number of concerns that the First Nation Community of Fort McKay, Alberta has related to development of Canada's oil sands. An in-depth investigation of trends in ambient air VOC levels in Fort McKay was undertaken to better understand the role and possible significance of emissions from Alberta's oil sands development. A non-parametric trend detection method was used to investigate trends in emissions and ambient VOC concentrations over a 12-year (2001-2012) period. Relationships between ambient VOC concentrations and production indicators of oil sands operations around Fort McKay were also examined. A weak upward trend (significant at 90% confidence level) was found for ambient concentrations of total VOCs based on sixteen detected species with an annual increase of 0.64μg/m(3) (7.2%) per year (7.7μg/m(3) increase per decade). Indicators of production (i.e., annual bitumen production and mined oil sands quantities) were correlated with ambient total VOC concentrations. Only one of 29 VOC species evaluated (1-butene) showed a statistically significant upward trend (p=0.05). Observed geometric (arithmetic) mean and maximum ambient concentrations of selected VOCs of public health concern for most recent three years of the study period (2010-2012) were below chronic and acute health risk screening criteria of the U.S. Agency for Toxic Substances and Disease Registry and U.S. Environmental Protection Agency. Thirty-two VOCs are recommended for tracking in future air quality investigations in the community to better understand whether changes are occurring over time in relation to oil sands development activities and to inform policy makers about whether or not these changes warrant additional attention.
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Affiliation(s)
- Md Aynul Bari
- School of Public Health, University of Alberta, 3-57 South Academic Building, 11405-87 Avenue, Edmonton, Alberta T6G 1C9, Canada.
| | - Warren B Kindzierski
- School of Public Health, University of Alberta, 3-57 South Academic Building, 11405-87 Avenue, Edmonton, Alberta T6G 1C9, Canada
| | - David Spink
- Pravid Environmental Inc., 62 Lucerne Crescent, St. Albert, Alberta T8N 2R2, Canada
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Blake NJ, Penkett SA, Clemitshaw KC, Anwyl P, Lightman P, Marsh ARW, Butcher G. Estimates of atmospheric hydroxyl radical concentrations from the observed decay of many reactive hydrocarbons in well-defined urban plumes. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jd02161] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Law KS, Pyle JA. Modeling trace gas budgets in the troposphere: 1. Ozone and odd nitrogen. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/93jd01479] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Roukos J, Riffault V, Locoge N, Plaisance H. VOC in an urban and industrial harbor on the French North Sea coast during two contrasted meteorological situations. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2009; 157:3001-3009. [PMID: 19581030 DOI: 10.1016/j.envpol.2009.05.059] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 05/22/2009] [Accepted: 05/31/2009] [Indexed: 05/28/2023]
Abstract
Two measurement campaigns of volatile organic compounds (VOC) were carried out in the industrial city of Dunkerque, using Radiello passive samplers during winter (16-23 January) and summer (6-13 June) 2007. 174 compounds were identified belonging to six chemical families. Classifying sampling sites with similar chemical profiles by hierarchical ascending classification resulted in 4 groups that reflected the influence of the main industrial and urban sources of pollution. Also, the BTEX (Benzene, Toluene, Ethylbenzene and Xylenes) quantification allowed us to map their levels of concentration. Benzene and toluene (BT) showed high concentrations in Northern Dunkerque reflecting the influence of two industrial plants. Differences among spatial distributions of the BT concentrations over contrasted meteorological conditions were also observed. An atypical ratio of T/B in the summer samples led us to investigate the BTEX origins shedding light on the contribution of pollutants transported across various zones of VOC emissions situated in Europe.
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Affiliation(s)
- Joelle Roukos
- Ecole des Mines de Douai, Département Chimie et Environnement, Douai Cedex, France.
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Chan E. Regional ground-level ozone trends in the context of meteorological influences across Canada and the eastern United States from 1997 to 2006. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010090] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Xiao Y, Logan JA, Jacob DJ, Hudman RC, Yantosca R, Blake DR. Global budget of ethane and regional constraints on U.S. sources. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009415] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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You XI, Senthilselvan A, Cherry NM, Kim HGMI, Burstyn I. Determinants of airborne concentrations of volatile organic compounds in rural areas of Western Canada. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2008; 18:117-28. [PMID: 17327851 DOI: 10.1038/sj.jes.7500556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We estimated the level and determinants of airborne concentrations of 26 volatile organic compounds (VOC) in rural Western Canada. A multisite, multimonth unbalanced two-factorial design was used to collect air samples at 1206 fixed sites across a geographic area associated with primary oil and gas industry in Alberta, northeastern British Columbia, and central and southern Saskatchewan from April 2001 to December 2002. Principal component factor analysis was used to group VOC into three mixtures. Factor I was a group of compounds dominated by benzene, toluene, ethyl-benzene, xylenes, and hexane. Factor II was mainly a group of vegetation-related monoterpenes and dichlorobenzenes. Factor III was a group of chlorinated VOC. Linear mixed effects models were applied to identify the determinants of airborne concentrations of VOC and evaluate the association between these factors and oil and gas facilities. Our results indicated that the studied VOC were present in small (ng/m3) quantities. Components of Factor I VOC showed a seasonal variation with maxima in winter and minima in summer, whereas components of Factor II displayed an opposite seasonal trend. Components of Factor III did not show a clear seasonal pattern. We observed that oil and gas facilities only contribute to airborne concentrations of components of Factor I. Proximity to batteries (within 2 km) was most influential in determining monthly airborne concentrations of components of Factor I, followed by gas and oil wells. Modification of batteries to reduce evaporation and leakage might be considered as a measure to control airborne concentrations of compounds such as benzene and toluene.
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Xiao Y, Jacob DJ, Turquety S. Atmospheric acetylene and its relationship with CO as an indicator of air mass age. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008268] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Aydin M, Williams MB, Saltzman ES. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Simmonds PG, Manning AJ, Cunnold DM, McCulloch A, O'Doherty S, Derwent RG, Krummel PB, Fraser PJ, Dunse B, Porter LW, Wang RHJ, Greally BR, Miller BR, Salameh P, Weiss RF, Prinn RG. Global trends, seasonal cycles, and European emissions of dichloromethane, trichloroethene, and tetrachloroethene from the AGAGE observations at Mace Head, Ireland, and Cape Grim, Tasmania. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006jd007082] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kim JH, Lee HJ, Lee SH. The characteristics of tropospheric ozone seasonality observed from ozone soundings at Pohang, Korea. ENVIRONMENTAL MONITORING AND ASSESSMENT 2006; 118:1-12. [PMID: 16897529 DOI: 10.1007/s10661-006-0772-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2005] [Accepted: 07/05/2005] [Indexed: 05/11/2023]
Abstract
This paper presents the first analysis of vertical ozone sounding measurements over Pohang, Korea. The main focus is to analyze the seasonal variation of vertical ozone profiles and determine the mechanisms controlling ozone seasonality. The maxima ozone at the surface and in the free troposphere are observed in May and June, respectively. In comparison with the ozone seasonality at Oki (near sea level) and Happo (altitude of 1840 m) in Japan, which are located at the same latitude as of Pohang, we have found that the time of the ozone maximum at the Japanese sites is always a month earlier than at Pohang. Analysis of the wind flow at the surface shows that the wind shifts from westerly to southerly in May over Japan, but in June over Pohang. However, this wind shift above boundary layer occurs a month later. This wind shift results in significantly smaller amounts of ozone because the southerly wind brings clean wet tropical air. It has been suggested that the spring ozone maximum in the lower troposphere is due to polluted air transported from China. However, an enhanced ozone amount over the free troposphere in June appears to have a different origin. A tongue-like structure in the time-height cross-section of ozone concentrations, which starts from the stratosphere and extends to the middle troposphere, suggests that the ozone enhancement occurs due to a gradual migration of ozone from the stratosphere. The high frequency of dry air with elevated ozone concentrations in the upper troposphere in June suggests that the air is transported from the stratosphere. HYSPLIT trajectory analysis supports the hypothesis that enhanced ozone in the free troposphere is not likely due to transport from sources of anthropogenic activity.
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Affiliation(s)
- Jae H Kim
- Department of Atmospheric Science, Pusan National University, Pusan, 609-735, Korea.
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Hopkins JR, Boddy RK, Hamilton JF, Lee JD, Lewis AC, Purvis RM, Watson NJ. An observational case study of ozone and precursors inflow to South East England during an anticyclone. ACTA ACUST UNITED AC 2006; 8:1195-202. [PMID: 17133276 DOI: 10.1039/b608062f] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Summertime photochemical air pollution episodes within the United Kingdom have been proposed via modelling studies to be strongly influenced by regional scale inflow of air from the continental European boundary layer. We present a vertically resolved case study using measurements made from the NERC/Met Office BAe 146 research aircraft on 18th August 2005 over the South East of England and the North Sea during a weak anticyclone centred over Northern Europe. The vertical distribution of ozone, CO, NO(x), peroxyacetyl nitrate (PAN) and a wide range of both nonmethane hydrocarbons (NMHC) and oxygenated volatile organic compounds (OVOCs) were determined between 500 ft (approximately 152 m) and 7000 ft (approximately 2134 m) over the East Anglia coastline and 50 km inland. In excess of 80 ppbV ozone was observed within inflowing boundary layer air over the North Sea coast in a broad N-S sloping feature around 60 km wide. The inflowing feature of European origin was also observed further inland within the boundary layer albeit with lower, more variable, ozone mixing ratios. The increased variability in ozone over land was a product of titration by fresh surface emissions of NO via rapid upward transport in thermals, a hypothesis supported by the observed vertical wind speed component. Fast boundary layer mixing over land was further illustrated by a uniform distribution in reactive alkenes. A comparison between aircraft and surface O(3) UK AUN (Automatic Urban Network) measurements showed good agreement with the inland site, Sibton, but marked differences with the coastal monitoring site at Weybourne, potentially due to gradients established by ocean deposition in stably stratified marine air.
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Affiliation(s)
- J R Hopkins
- Department of Chemistry, University of York, York, UK.
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16
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Gerasopoulos E. Ozone variability in the marine boundary layer of the eastern Mediterranean based on 7-year observations. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005jd005991] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Watanabe K. Measurements of ozone concentrations on a commercial vessel in the marine boundary layer over the northern North Pacific Ocean. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005514] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Utembe SR, Jenkin ME, Derwent RG, Lewis AC, Hopkins JR, Hamilton JF. Modelling the ambient distribution of organic compounds during the August 2003 ozone episode in the southern UK. Faraday Discuss 2005; 130:311-26; discussion 363-86, 519-24. [PMID: 16161791 DOI: 10.1039/b417403h] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photochemical trajectory model containing speciated emissions of 124 non-methane volatile organic compounds (VOC), and a comprehensive description of the chemistry of VOC degradation, has been used to simulate the chemical evolution of boundary layer air masses arriving at a field campaign site in the southern UK during a widespread and prolonged photochemical pollution event in August 2003. The simulated concentrations and distributions of organic compounds at the arrival location are compared with observations of a series of hydrocarbons and carbonyl compounds, which were measured using GC-FID and multidimensional GC methods. The comparison of the simulated and observed distributions of 34 emitted hydrocarbons provides some support for the magnitude and applied emissions speciation of anthropogenic hydrocarbons, but is indicative of an under representation of the input of biogenic hydrocarbons, particularly at elevated temperatures. Simulations of the detailed distribution of ca. 1250 carbonyl compounds, formed primarily from the degradation of the 124 emitted VOC, focus on 61 aldehydes, ketones, dicarbonyls, hydroxycarbonyls and aromatic aldehydes which collectively account for ca. 90% of the simulated total molar concentration of carbonyls. The simulated distributions indicate that the photolysis of formaldehyde and alpha-dicarbonyls make major contributions to free radical production for the arrival conditions of five case study trajectories. The simulated concentrations of hydroxycarbonyls demonstrate preferential formation of the 1,4-substituted isomers (compared with 1,2- and 1,3-isomers of the same carbon number), which are formed during the initial oxidation sequence of longer chain alkanes.
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Affiliation(s)
- Steven R Utembe
- Department of Environmental Science and Technology, Imperial College London, Silwood Park, Ascot, Berkshire, UK, SL5 7PY
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Aschmann SM, Atkinson R. Rate constants for the gas-phase reactions of alkanes with Cl atoms at 296 ± 2 K. INT J CHEM KINET 2004. [DOI: 10.1002/kin.550270611] [Citation(s) in RCA: 133] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Wang Y. On tracer correlations in the troposphere: The case of ethane and propane. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004jd005023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gautrois M, Brauers T, Koppmann R, Rohrer F, Stein O, Rudolph J. Seasonal variability and trends of volatile organic compounds in the lower polar troposphere. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002765] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. Gautrois
- Institut für Chemie und Dynamik der Geosphäre; Institut II: Troposphäre, Forschungszentrum Jülich; Jülich Germany
| | - T. Brauers
- Institut für Chemie und Dynamik der Geosphäre; Institut II: Troposphäre, Forschungszentrum Jülich; Jülich Germany
| | - R. Koppmann
- Institut für Chemie und Dynamik der Geosphäre; Institut II: Troposphäre, Forschungszentrum Jülich; Jülich Germany
| | - F. Rohrer
- Institut für Chemie und Dynamik der Geosphäre; Institut II: Troposphäre, Forschungszentrum Jülich; Jülich Germany
| | - O. Stein
- Institut für Chemie und Dynamik der Geosphäre; Institut II: Troposphäre, Forschungszentrum Jülich; Jülich Germany
| | - J. Rudolph
- Chemistry Department and Centre for Atmospheric Chemistry; York University; Toronto Ontario Canada
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Thompson A, Rudolph J, Rohrer F, Stein O. Concentration and stable carbon isotopic composition of ethane and benzene using a global three-dimensional isotope inclusive chemical tracer model. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002883] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alexandra Thompson
- Centre for Atmospheric Chemistry, Chemistry Department; York University; Toronto Ontario Canada
| | - Jochen Rudolph
- Centre for Atmospheric Chemistry, Chemistry Department; York University; Toronto Ontario Canada
| | - Franz Rohrer
- Institut für Chemie und Dynamik der Geosphäre II, Troposphere; Forschungszentrum Juelich; Juelich Germany
| | - Olaf Stein
- Institut für Chemie und Dynamik der Geosphäre II, Troposphere; Forschungszentrum Juelich; Juelich Germany
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Brown SS, Stark H, Ryerson TB, Williams EJ, Nicks DK, Trainer M, Fehsenfeld FC, Ravishankara AR. Nitrogen oxides in the nocturnal boundary layer: Simultaneous in situ measurements of NO3, N2O5, NO2, NO, and O3. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002917] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Mauldin RL. Measurements of OH, H2SO4, and MSA during Tropospheric Ozone Production About the Spring Equinox (TOPSE). ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002295] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Blake NJ. NMHCs and halocarbons in Asian continental outflow during the Transport and Chemical Evolution over the Pacific (TRACE-P) Field Campaign: Comparison With PEM-West B. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003367] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Dibb JE. Stratospheric influence on the northern North American free troposphere during TOPSE:7Be as a stratospheric tracer. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001347] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Klonecki A. Seasonal changes in the transport of pollutants into the Arctic troposphere-model study. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002199] [Citation(s) in RCA: 130] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Atlas EL. The Tropospheric Ozone Production about the Spring Equinox (TOPSE) Experiment: Introduction. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003172] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Swanson AL. Seasonal variations of C2–C4nonmethane hydrocarbons and C1–C4alkyl nitrates at the Summit research station in Greenland. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001445] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Blake NJ. The seasonal evolution of NMHCs and light alkyl nitrates at middle to high northern latitudes during TOPSE. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001467] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Tanimoto H, Wild O, Kato S, Furutani H, Makide Y, Komazaki Y, Hashimoto S, Tanaka S, Akimoto H. Seasonal cycles of ozone and oxidized nitrogen species in northeast Asia 2. A model analysis of the roles of chemistry and transport. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001497] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hiroshi Tanimoto
- Atmospheric Environment Division; National Institute for Environmental Studies; Tsukuba Japan
| | - Oliver Wild
- Atmospheric Composition Research Program; Frontier Research System for Global Change; Yokohama Japan
| | - Shungo Kato
- Japan Science and Technology Corporation; Saitama Japan
| | | | | | - Yuichi Komazaki
- Department of Applied Chemistry, Faculty of Science and Technology; Keio University; Japan
| | - Shigeru Hashimoto
- Department of Applied Chemistry, Faculty of Science and Technology; Keio University; Japan
| | - Shigeru Tanaka
- Department of Applied Chemistry, Faculty of Science and Technology; Keio University; Japan
| | - Hajime Akimoto
- Atmospheric Composition Research Program; Frontier Research System for Global Change; Yokohama Japan
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Allan BJ, Plane JMC, Coe H, Shillito J. Observations of NO3
concentration profiles in the troposphere. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2002jd002112] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- B. J. Allan
- School of Environmental Sciences; University of East Anglia; Norwich UK
| | - J. M. C. Plane
- School of Environmental Sciences; University of East Anglia; Norwich UK
| | - H. Coe
- Department of Physics; University of Manchester Institute of Science and Technology; Manchester UK
| | - J. Shillito
- Department of Physics; University of Manchester Institute of Science and Technology; Manchester UK
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Blake NJ, Blake DR, Simpson IJ, Lopez JP, Johnston NAC, Swanson AL, Katzenstein AS, Meinardi S, Sive BC, Colman JJ, Atlas E, Flocke F, Vay SA, Avery MA, Rowland FS. Large-scale latitudinal and vertical distributions of NMHCs and selected halocarbons in the troposphere over the Pacific Ocean during the March-April 1999 Pacific Exploratory Mission (PEM-Tropics B). ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900773] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Salisbury G, Rickard AR, Monks PS, Allan BJ, Bauguitte S, Penkett SA, Carslaw N, Lewis AC, Creasey DJ, Heard DE, Jacobs PJ, Lee JD. Production of peroxy radicals at night via reactions of ozone and the nitrate radical in the marine boundary layer. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900754] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rudolph J, Czuba E, Huang L. The stable carbon isotope fractionation for reactions of selected hydrocarbons with OH-radicals and its relevance for atmospheric chemistry. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jd900447] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Phadnis MJ, Carmichael GR. Transport and distribution of primary and secondary nonmethane volatile organic compounds in east Asia under continental outflow conditions. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd901098] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ariya PA, Sander R, Crutzen PJ. Significance of HOxand peroxides production due to alkene ozonolysis during fall and winter: A modeling study. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jd900074] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mauzerall DL, Narita D, Akimoto H, Horowitz L, Walters S, Hauglustaine DA, Brasseur G. Seasonal characteristics of tropospheric ozone production and mixing ratios over East Asia: A global three-dimensional chemical transport model analysis. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jd900087] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Spivakovsky CM, Logan JA, Montzka SA, Balkanski YJ, Foreman-Fowler M, Jones DBA, Horowitz LW, Fusco AC, Brenninkmeijer CAM, Prather MJ, Wofsy SC, McElroy MB. Three-dimensional climatological distribution of tropospheric OH: Update and evaluation. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd901006] [Citation(s) in RCA: 644] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kotamarthi VR, Wuebbles DJ, Reck RA. Effects of nonmethane hydrocarbons on lower stratospheric and upper tropospheric chemical climatology in a two-dimensional zonal average model. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900334] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wingenter OW, Blake DR, Blake NJ, Sive BC, Rowland FS, Atlas E, Flocke F. Tropospheric hydroxyl and atomic chlorine concentrations, and mixing timescales determined from hydrocarbon and halocarbon measurements made over the Southern Ocean. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900203] [Citation(s) in RCA: 109] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tsunogai U, Yoshida N, Gamo T. Carbon isotopic compositions of C2-C5hydrocarbons and methyl chloride in urban, coastal, and maritime atmospheres over the western North Pacific. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900217] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jobson BT, McKeen SA, Parrish DD, Fehsenfeld FC, Blake DR, Goldstein AH, Schauffler SM, Elkins JW. Trace gas mixing ratio variability versus lifetime in the troposphere and stratosphere: Observations. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900126] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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McCulloch A, Aucott ML, Graedel TE, Kleiman G, Midgley PM, Li YF. Industrial emissions of trichloroethene, tetrachloroethene, and dichloromethane: Reactive Chlorine Emissions Inventory. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900011] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lelieveld J, Bregman A, Scheeren HA, Ström J, Carslaw KS, Fischer H, Siegmund PC, Arnold F. Chlorine activation and ozone destruction in the northern lowermost stratosphere. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998jd100111] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pochanart P, Hirokawa J, Kajii Y, Akimoto H, Nakao M. Influence of regional-scale anthropogenic activity in northeast Asia on seasonal variations of surface ozone and carbon monoxide observed at Oki, Japan. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998jd100071] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yienger JJ, Klonecki AA, Levy H, Moxim WJ, Carmichael GR. An evaluation of chemistry's role in the winter-spring ozone maximum found in the northern midlatitude free troposphere. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998jd100043] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Penkett SA, Reeves CE, Bandy BJ, Kent JM, Richer HR. Comparison of calculated and measured peroxide data collected in marine air to investigate prominent features of the annual cycle of ozone in the troposphere. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97jd02852] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Schultz M, Schmitt R, Thomas K, Volz-Thomas A. Photochemical box modeling of long-range transport from North America to Tenerife during the North Atlantic Regional Experiment (NARE) 1993. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97jd01481] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Houweling S, Dentener F, Lelieveld J. The impact of nonmethane hydrocarbon compounds on tropospheric photochemistry. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97jd03582] [Citation(s) in RCA: 317] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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