- ANALYTICAL CHEMISTRY, 91, 20, Pages: 12619-12624, Published: SEP 17 2019
- DOI:https://doi.org/10.1021/acs.analchem.9b02949
- Leglise, J 1
- Muller, M 2
- Piel, F 2,4
- Otto, T 3
- Wisthaler, A 4,5
- CNRS-ICARE, 45100 Orleans, France
- IONICON Analytik GmbH, 6020 Innsbruck, Austria
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), 04318 Leipzig, Germany
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, 6020 Innsbruck, Austria
- Department of Chemistry, University of Oslo, 0315 Oslo, Norway
A CHARON PTR-ToF-MS study on the volatility of freshly formed biogenic SOA
- Geophysical Research Abstracts, EGU General Assembly 2019, Vol. 21, EGU2019-13371, 2019
- https://meetingorganizer.copernicus.org/EGU2019/EGU2019-13371.pdf
Analysis of Aerosol Online” (CHARON) particle inlet has been introduced, enabling proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS) instruments to directly characterize particulate-bound organics in real-time down to the molecular sum formula level. For this study, we coupled a CHARON PTR-ToF-MS instrument to a flow reactor to analyze secondary organic aerosol (SOA) formed by the ozonolysis of -pinene, limonene and 3-carene, respectively. In addition, a thermodenuder was added between the reactor and the CHARON-PTRToF-MS instrument for measuring the volatility of SOA constituents and for comparing experimental data with predictions based on the 2D volatility basis set (2D-VBS). We found that the saturation mass concentration of the bulk aerosol can be predicted to within one order of magnitude based on the speciated chemical information obtained by CHARON-PTR-ToF-MS.
J.L. and F. P. received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement number 690958 (MARSU) and grant agreement Nº674911 (IMPACT), respectively.
- Muller, M 1
- Leglise, J 2
- Piel, F 1
- Wisthaler, A 3,4
- IONICON Analytik GmbH, 6020 Innsbruck, Austria
- CNRS-ICARE, 45100 Orleans, France
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, 6020 Innsbruck, Austria
- Department of Chemistry, University of Oslo, 0315 Oslo, Norway
Aerosol Chemistry Investigations by CHARON PTR-TOF
- Contributions of the 8th International Conference on Proton Transfer Reaction Mass Spectrometry and its Applications, 140-142 (2019)
- DOI:
- Muller, M 1
- Leglise, J 2
- Piel, F 1
- Wisthaler, A 3,4
- IONICON Analytik GmbH, 6020 Innsbruck, Austria
- CNRS-ICARE, 45100 Orleans, France
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, 6020 Innsbruck, Austria
- Department of Chemistry, University of Oslo, 0315 Oslo, Norway
Profile of inhalable bacteria in PM2.5 at Mt. Tai, China: Abundance, community, and influence of air mass trajectories
- ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, Volume:168, Pages: 110-119, Published: JAN 30 2019
- DOI:10.1016/j.ecoenv.2018.10.071
- Xu, C 1
- Wei, M 3
- Chen, J 3
- Zhu, C 1,2,4,5
- Li, J 1
- Xu, X 2
- Wang, W 2
- Zhang, Q 2
- Ding, A 4
- Kan, H 5
- Zao, Z 5
- Mellouki, A 1,3,6
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP, Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
- College of Geography and Environment, Shandong Normal University, Jinan 250100, China
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji’nan 250100, China
- Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
- CNRS, Inst Combust Aerotherm Reactivite & Environm, F-45071 Orleans 02, France
Six sources mainly contributing to the haze episodes and health risk assessment of PM2.5 at Beijing suburb in winter 2016
- ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, Volume:166, Pages: 146-156, Published: DEC 30 2018
- DOI:10.1016/j.ecoenv.2018.09.069
- Xu, Xianmang 1
- Zhang, Hefeng 2
- Chen, Jianmin 1,3,4
- Li, Qing 3
- Wang, Xinfeng 1
- Wang, Wenxing 1
- Zhang, Qingzhu 1
- Xue, Likun 1
- Ding, Aijun 4
- Mellouki, Abdelwahid 1,3,5
- Shandong Univ, Environm Res Inst, Sch Environm Sci & Engn, Jinan 250100, Shandong, Peoples R China
- Chinese Res. Inst Environm Sci, Atmospher Environm Inst, Minist Environm Protect, Beijing 100012, Peoples R China
- Fudan Univ, Dept Environm Sci & Engn, Fudan Tyndall Ctr, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China
- Nanjing Univ, Inst Climate & Global Change Res, Sch Atmospher Sci, Nanjing 210023, Jiangsu, Peoples R China
- CNRS, Inst Combust Aerotherm Reactivite & Environm, F-45071 Orleans 02, France
Air quality in the middle and lower reaches of the Yangtze River channel: a cruise Campaign
- ATMOSPHERIC CHEMISTRY AND PHYSICS, Volume:18, Issue:19, Pages:14445-14464, Published: OCT 10 2018
- DOI: 10.5194/acp-18-14445-2018
- Li, Zhong 1
- Li, Chunlin 1,2
- Ye, Xingnan 1
- Fu, Hongbo 1
- Wang, Lin 1
- Yang, Xin 1
- Wang, Xinke 3
- Zhao, Zhuohui 4
- Kan, Haidong 4
- Mellouki, Abdelwahid 5
- Chen, Jianmin 1,4F
- Fudan Univ, Inst Atmospher Sci, Shanghai Key Lab Atmospher Particle Pollut & Prev, Fudan Tyndall Ctr, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China
- Weizmann Inst Sci, Dept Earth & Planetary Sci, IL-7610001 Rehovot, Israel
- Univ Lyon, Univ Claude Bernard Lyon 1, CNRS, IRCELYON, F-69626 Villeurbanne, France
- Fudan Univ, Sch Publ Hlth, Shanghai 200032, Peoples R China
- CNRS, Inst Combust Aerotherm Reactivite & Environm, F-45071 Orleans 02, France
Impact of global changes on Greenhouse Gas (GHG) exchanges and on Carbon balance for sphagnum type peatlands: a field study investigation
- International session of the 24th Annual Conference on Atmospheric Science and Technology, Chinese Society of Environmental Sciences, Sub-society of Atmospheric Sciences, International Conference Center, 2-4 November, 2018, Qingdao, China
- Oral presentation
Peatlands are efficient ecosystems for Carbon sequestration (30% of the world’s soil C stock). Under healthy ecosystem conditions, C is stored from atmospheric CO2 assimilation (photosynthesis, vegetation growth, accumulation of organic maters which has not been completely decomposed, leading to peat formation and accumulation). Anthropogenic global changes (Climate, pollution, land use) have a strong impact on peatlands C exchange (as GreenHouse gases) with atmosphere and on peatlands survey, where C may be released instead of being stored. Sphagnum peatlands represent the main C pool and are mainly located in subarctic or temperate wet regions. Subarctic sphagnum peatlands will experience the most drastic climate changes (IPPC 2007). As a consequence the feedback of global changes on C exchange from sphagnum peatlands and in return the impact to the future climate evolution need to be assessed.
From the previous statements, investigation and parametrization of the key factors controlling GHG exchanges and C balance, and the impact of global changes of these factors, for sphagnum peatlands, is considered as a global priority to deal with global warming. Findings from such investigations will help to improve mitigation policy for global warming by conservation of natural peatlands or restoration of disturbed peatlands.
Key factors controlling GHG exchanges and C balance in peatlands are presented hereafter from field study at various scales:
-First at the vegetation scale: The approach to determine the major controlling factors of GHG fluxes and C balance is obtained as follow: Seasonal and daily cycles of CO2, CH4 and N2O fluxes are monitored at the m2 scale (with IR sensors and manual chambers). Then, fluxes are optimized from (empirical and/or mechanistic) modeling by scaling the most influent environmental parameters. Finally, gap filing for missing data at different scales (spatial and temporal) provides C balance at a yearly scale. From well controlled peat cores (mesocosms) extracted in a French peatland (La Guette), the investigation of the effect of vegetation, nitrate input, water table (drought) and artificial warming with open top chambers (following ITEX protocol) enabled us to determine the major controlling factors of GHG fluxes (Leroy et al., 2017). From field experiments in real sites (la Guette peatland) C balance has been estimated before water table restoration initiated by the installation of a dam upstream the peatland in the frame FEDER-EU, Région CVL : CARBIODIV (2013-16) and CAREX (2017-21) projects (d’Angelo et al. 2016 and in preparation).
-Second at the ecosystem, regional and world scales: To improve C balance investigation, ecosystem level observations started to be studied since 2017 by the installation of an eddy covariance flux station in la Guette peatland supported by the project PIVOTS Région CVL (ARD2020, FEDER, CPER). Similar flux towers are under installation on 2 other sites of the French Peatland Observation Service (SNO Tourbières, CNRS/INSU-SIC) and on the CliMireSiber worldwide Network of peatlands (from Europe to Russia).
- Christophe Guimbaud 1
- S. Gogo 1
- F. Leroy 1
- B. d’Angelo 1
- Q. Li 1
- A. Jacotot 1
- J.B. Paroissien 1
- L. Perdereau 1
- C. Robert 1
- M. Chartier 1
- P. Jacquet 1
- E. Salmon 1
- A, Z. Hu 2
- S. Wang 2
- F. Jégou 1
- F. Laggoun 1
- University of Orleans/CNRS, Orleans-France
- School of Environmental Science and Engineering, Environment Research Institute, Shandong University, Qingdao, Shandong, China
High resolution infrared spectroscopy applied to monitor the dynamic of gasoline BTEX biodegradation in aquifers
- 2018 International Conference on Advanced Technologies in Energy, Environmental and Electrical Engineering (AT3E 2018), Shandong University, 26-28 October, 2018, Qingdao, China
- Oral presentation
The presentation first focus on the performances and applications of a new high resolution laser infrared spectrometer (SPIRIT) for measurements of greenhouse gas mixing ratios and fluxes from peatlands and hydrocarbon-contaminated soils to the atmosphere, with the ability to determine the δ13C/12C of CO2 emissions.
The presentation then focuses on the ability to monitor the remediation dynamic from biodegradation of hydrocarbon contaminants in underground water by the CO2 byproduct analysis emitted at ground surface (flux and δ13C/12C determination). The investigated site is an old gasoline station near Paris contaminated by BTEX hydrocarbons remaining from tanks leak. A bioactive barrier has been set to stimulated aerobic biodegradation by H2O2 liquid injection in the aquifer. Good cartographic correlation is observed from upstream to downstream the depollution plume between (i) the CO2 flux emitted at soil surface and the BTEX concentration in the aquifer and (ii) the δ13C/12C of CO2 emitted and the underground δ13C/12C of BTEX, with some fractionation factor. Results demonstrate the effectiveness of monitoring a stimulated bio-depollution in real time without excavation of soil matter by measurements of the surface CO2 emission fluxes with δ13C/12C characterization. For the first time, the kinetic of bio-depollution could be quantified from the Rayleigh equations applied on the monitoring of δ13C/12C of the CO2 released at ground surface. CO2 monitoring at ground surface could be a cost effective way to monitor real time biological or chemical treatments of depollution in order to optimize soil bio-treatment.
- Christophe Guimbaud 1
- C. Noel 1
- I. Ignatiadis 1
- C. Robert 1
- M. Chartier 1
- P. Jacquet 1
- J. Jacob 1
- A. Grossel 2
- A, Z. Hu 3
- S. Wang 3
- F. Jégou 1
- J.C. Gourry 1
- University of Orleans/CNRS, Orleans-France
- INRA, Orleans-France
- School of Environmental Science and Engineering, Environment Research Institute, Shandong University, Qingdao, Shandong, China
Investigation of new particle formation at the summit of Mt. Tai, China
- Atmos. Chem. Phys., 18, 2243–2258, 2018
- https://doi.org/10.5194/acp-18-2243-2018
- Ganglin Lu 1
- Xiao Sui 1
- Jianmin Chen 1,2
- Rohan Jayaratne 3
- Abdelwahid Mellouki 1,4
- School of Environmental Science and Engineering, Environment Research Institute, Shandong University, Jinan, Shandong 250100, China
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Institute of Atmospheric Sciences, Fudan University, Shanghai 200433, China
- International Laboratory for Air Quality and Health, Science and Engineering Faculty, Queensland University of Technology, G.P.O. Box 2434, Brisbane, QLD4001, Australia
- Institut de Combustion, Aérothermique, Réactivité et Environnement, CNRS, 45071 Orléans CEDEX 02, France
Direct sampling of sub-μm atmospheric particulate organic matter at sub-ng m-3 mass concentrations by proton-transfer-reaction mass spectrometry
- European Geosciences Union (EGU), Vienna/Austria 08-13 April 2018
- File: https://meetingorganizer.copernicus.org/EGU2018/EGU2018-6392.pdf
The development of CHARON was funded through the PIMMS ITN, which was supported by the European Commission’s 7th Framework Programme under grant agreement number 287382. J.L. received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement number 690958 (MARSU).
- Markus Müller 1,2
- Andreas Klinger 1
- Gregor Mayramhof 1
- Joris Leglise 3
- Armin Wisthaler 2, 4
- IONICON Analytik GmbH., Innsbruck, Austria
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
- CNRS-ICARE/University of Orleans, Orleans, France
- Department of Chemistry, University of Oslo, Oslo, Norway
Aerosol Chemistry Investigations by CHARON-PTR-ToF-MS
- European Geosciences Union (EGU), Vienna/Austria 08-13 April 2018
- File: https://meetingorganizer.copernicus.org/EGU2018/EGU2018-12996.pdf
The development of CHARON was funded through the PIMMS ITN, which was supported by the European Commission’s 7th Framework Programme under grant agreement number 287382. J.L. and T.O. received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement number 690958 (MARSU).
- Joris Leglise 1
- Markus Müller 2,3
- Tobias Otto 4
- Armin Wisthaler 3, 5
- CNRS-ICARE/University of Orleans, Orleans, France
- IONICON Analytik GmbH., Innsbruck, Austria
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
- Leibniz-Institut für Troposhärenforschung e.V., Leipzig, Germany
- Department of Chemistry, University of Oslo, Oslo, Norway
Direct sampling of sub-μm atmospheric particulate organic matter in sub-ng m-3 mass concentrations by proton-transfer-reaction mass spectrometry
- American Geophysical Union (AGU) Fall Meeting, New Orleans 11-15 December 2017
- Poster file
- Markus Müller 1,2
- Andreas Klinger 2
- Gregor Mayramhof 2
- Joris Leglise 3
- Tobias Otto 4
- Armin Wisthaler 1, 5
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
- IONICON Analytik GmbH., Innsbruck, Austria
- CNRS-ICARE/University of Orleans, Orleans, France
- Leibniz-Institut für Troposhärenforschung e.V., Leipzig, Germany
- Department of Chemistry, University of Oslo, Oslo, Norway
Interfacial photochemistry of biogenic surfactants: a major source of abiotic volatile organic compounds?
- Faraday Discusion, 200, 59-74, 2017
- DOI: 10.1039/C7FD00022G
- Martin Brüggemann 1,∆,
- Nathalie Hayeck 1,∆,
- Chloé Bonnineau 2,
- Stéphane Pesce 2,
- Peter A. Alpert 1,†,
- Sébastien Perrier 1,
- Christoph Zuth 3,
- Thorsten Hoffmann 3,
- Jianmen Chen 4
- Christian George1,*
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, F-69626, Villeurbanne, France
- Irstea, UR MALY, centre de Lyon-Villeurbanne, F-69616 Villeurbanne, France
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-Universität, 55128 Mainz, Germany
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Shanghai 200433, China
∆These authors contributed equally.
†now at: Paul Scherrer Institute, 5232 Villigen, Switzerland
Investigation of diverse bacteria in cloud water at Mt. Tai, China
- Science of the Total Environment, 580, 258-265, 2017
- DOI: 10.1016/j.scitotenv.2016.12.081
- Caihong Xu a,
- MinWei a,
- Jianmin Chen a,b,
- Xiao Sui a,
- Chao Zhua,
- Jiarong Li a,
- Lulu Zheng b,
- Guodong Sui b,
- Weijun Li a,
- WenxingWang a,
- Qingzhu Zhang a,
- Abdelwahid Mellouki b,c
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji’nan 250100, China
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP), Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University,
Shanghai 200433, China - Institut de Combustion, Aérothermique, Réactivité et Environnement, CNRS, 45071 Orléans cedex 02, France
Bacterial characterization in ambient submicron particles during severe haze episodes at Ji’nan, China
- Science of the Total Environment, 580, 188-196, 2017
- http://dx.doi.org/10.1016/j.scitotenv.2016.11.145
- Caihong Xu a,
- MinWei a,
- Jianmin Chen a,b,
- XinfengWang a,
- ChaoZhu a,
- Jiarong Li a,
- Lulu Zheng b,
- Guodong Sui b,
- Weijun Li a,
- WenxingWang a,
- Qingzhu Zhang a,
- Abdelwahid Mellouki a,c
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji’nan 250100, China
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP), Fudan Tyndall Centre,Department of Environmental Science&Engineering, FudanUniversity, Shanghai 200433, China
- Institut de Combustion, Aérothermique, Réactivité et Environnement, CNRS, 45071 Orléans cedex 02, France
Fungi diversity in PM2. 5 and PM1 at the summit of Mt. Tai: abundance, size distribution, and seasonal variation
- Atmospheric Chemistry and Physics, 17, 11247-11260, 2017
- https://www.atmos-chem-phys.net/17/11247/2017/
- Caihong Xu 1,
- Min Wei 1,a,
- Jianmin Chen 1,2,3
- Chao Zhu 1,
- Jiarong Li 1,
- Ganglin Lv 1,
- Xianmang Xu 1,
- Lulu Zheng 2,
- Guodong Sui 2,
- Weijun Li 1,
- Bing Chen 1,
- Wenxing Wang 1,
- Qingzhu Zhang 1,
- Aijun Ding 3
- Abdelwahid Mellouki 1,4
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
- Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
- Institut de Combustion, Aérothermique, Réactivité et Environnement, CNRS, 45071 Orléans Cedex 02, France
anow at: College of Geography and Environment, Shandong Normal University, Jinan 250100, China
Tropospheric Aqueous-Phase Oxidation of Isoprene-Derived Dihydroxycarbonyl Compounds
- The Journal of Physical Chemistry A, 121, 6460-6470, 2017
- DOI: 10.1021/acs.jpca.7b05879
- Otto, T.,
- Stieger, B.,
- Mettke, P.,
- Herrmann, H.,
Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
Tropospheric Aqueous-Phase OH Oxidation Chemistry: Current Understanding, Uptake of Highly Oxidized Organics and Ist Effects
- ACS Symposium Series, in review
- DOI:
- A. Tilgner,
- Herrmann, H.,
Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
Chemical characterization of organic matter in marine environment – Analysis of nitrogen containing organic compounds
- The 16th international conference on Chemistry and the Environment (ICCE 2017
), 18 – 22 June 2017 Oslo
This study presents measurements of nitrogen containing organic compounds (free amino acids and amines) in marine field samples as an important subgroup of marine organic matter. Concerted measurements, meaning the simultaneous sampling of bulk water, the sea surface microlayer (SML) as well as marine aerosol particles (PM1) were performed at a remote atmospheric station in the tropical Atlantic Ocean, the Cape Verde Atmospheric Observatory (CVAO). Analytical measurements were based on derivatization with 6-Aminochinolyl-N-hydroxy-succinimidyl-carbamate (AQC) reagent and LC-MS analysis. The results of the concerted measurements show that free amino acids and amines are present in the marine compartments SML and aerosol particles. Phenylalanine could be quantified in concentration ranges between 142.18 nmol/L and 145.65 nmol/L in the SML samples and on the corresponding aerosol particles from 0.03 ng/m3 up to 0.21 ng/m3. Methylamine is present in SML samples in average concentration of 647.25 nmol/L and on the corresponding aerosol particles in concentration range between 0.36 ng/m3 and 0.69 ng/m3.
These concentrations are in the same order of magnitude compared to field studies in other marine areas. For example, concentration of free amino acids in marine seawater samples from the west coast of Scottland were also in the nmol/L range (Sommerville and Preston 2001) and free phenylalanine was detected in marine aerosol particles of eastern Mediteranean in average concentration of 0.3 ± 0.7 ng/m3 (Mandalakis, Apostolaki et al. 2010).
However, most studies focus on only one marine compartment: either aerosol particles or seawater investigations. The simultaneous determination of the amines and amino acids in the SML and in aerosol particles presented here will allow a more comprehensive analysis of nitrogen containing compounds in the marine environment including their enrichment in the SML and their transfer across the air-sea interface.
- Triesch N.,
- van Pinxteren M.,
- Herrmann, H.,
Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
Organic matter in marine aerosol particles: chemical characterization, transfer and sources
- The joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference, 25th to 29th of September 2018, Takamatsu, Kagawa, 760-0019 Japan
This study presents measurements of organic compounds (free (FAA)/combined amino acids (CAA) and proteins) in marine field samples as important subgroups of marine OM. Concerted measurements- the simultaneous sampling of bulk water (ULW), sea-surface-microlayer (SML) as well as marine aerosol particles (PM1) were performed at a remote atmospheric station in the tropical Atlantic Ocean, the Cape Verde Atmospheric Observatory(CVAO).
Analytical measurements of FAA and CAA (after hydrolysis) were based on derivatization with 6-Aminochinolyl-N-hydroxy-succinimidyl-carbamate(AQC)-reagent and LC-MS analysis. Proteins were quantified as Coomassie stainable particles.
The results of the concerted measurements show that the analytes are present in all three measured marine compartments. Phenylalanine was quantified in SML samples with an enrichment factor (EF) in up to 15 compared to ULW and an EF of Phenylalanine in the corresponding aerosol particles up to 944. These results are in the same order of magnitude compared to other field studies: The EF of FAA in SML of the western Mediterreanean Sea is up to 26 (Rheinthaler et.al 2008) and the EF of total organic carbon in aerosol samples of the Atlantic ocean is up to 104/105 -depending on chlorophyll-a-concentration (van Pinxteren et.al 2017).
However, most studies focus on only one marine compartment: either aerosol particles or seawater investigations. The simultaneous determination of the analytes in aerosol particles and in SML/ULW presented here will allow a more comprehensive analysis of OM on molecular level in the marine environment including its sources in the oceans, enrichment in SML, transfer across the air-sea-interface and the chemical composition of marine aerosol particles.
- Triesch N.,
- van Pinxteren M.,
- Herrmann, H.,
Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
Kinetic and product studies of the reactions of NO3 with a series of unsaturated organic compounds
- JOURNAL OF ENVIRONMENTAL SCIENCES, In Press, 2020
- DOI:
- Ren, Yangang 1
- McGillen, Max 1,2
- Ouchen, Ibrahim 3
- Daele, Veronique 1
- Mellouki, Abdelwahid 1
- CNRS, Inst Combust Aerotherm Reactivite & Environm, F-45071 Orleans 02, France
- Le Studium Loire Valley Institute for Advanced Studies, Orléans 45071, France
- Earth Sciences Department, Scientific Institute, Mohammed V- University, Rabat 10106, Morocco
- Application of TXRF in monitoring trace metals in particulate matter and cloud water
- ATMOSPHERIC MEASUREMENT TECHNIQUES, Submitted, November 2019
- DOI:
Ambient particulate matter and clouds trace metals are considered key elements of atmospheric processes as they affect air quality, environmental ecosystems and play an important role in cloud formation. However, they are often available at trace concentrations in these media such that their analysis requires high precision and sensitive techniques.In this study, we present different analytical methods applied to quantify trace metals in cloud water and particulate matter samples using total reflection X-ray fluorescence (TXRF). This method takes into account the direct measurement of filter samples with and without chemical pretreatment. It involves trace metal analysis of particulate matter collected on polycarbonate and quartz fiber filters, as well as cloud water, analyzed through direct pipetting on TXRF carrier substrates as well as analysis of aliquots of acid digested particulate matter filters. The methods showed good recovery for most trace metals when applied to commercially available reference materials and good agreement with results obtained from ion chromatography measurements for elements such as Ca and K.
The methods were applied successfully on field experiment ambient particulate matter and cloud water samples collected from the Atlas Mohamed V station in Morocco and the Cape Verde Atmospheric Observatory. The obtained concentration of the metals from the samples were within the range of concentrations reported using different measurement techniques from similar remote and background regions elsewhere, especially for elements of anthropogenic origins such as Zn, Pb, and V. The results confirm that TXRF is a useful complementary sensitive technique for trace metal analysis of particulate matter in the microgram range as well as in cloud water droplets.
- Fomba, Khanneh Wadinga 1
- Deabji, Nabil 1,2
- Barcha, Sayf El Islam 2
- Ouchen, Ibrahim 2
- Elbaramoussi, El Mehdi 2
- Cherkaoui El Moursli, Rajaa 2
- Harnafi, Mimoun 3
- El Hajjaji, Souad 2
- Mellouki, Abdelwahid 4
- Herrmann, Hartmut 1
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
- Faculty of Science, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, B.P. 1040,10100 Rabat, Morocco
- Scientific Institute, Mohammed V University in Raba, Av. Ibn Batouta, B.P 703, 10106 Rabat – Morocco
- CNRS, Inst Combust Aerotherm Reactivite & Environm, F-45071 Orleans 02, France
A new approach to quantify the biodegradation rate of hydrocarbons 1 in a contaminated aquifer by CO2 δ13C monitoring at ground surface
- ENVIRONMENTAL SCIENCE: PROCESSES & IMPACTS, In Press, January 2020
- DOI:
- Guimbaud, Christophe 1
- Noel, Cecile 1,2
- Verardo, Elicia 3
- Grossel, Agnes 4
- Jegou, Fabrice 1
- Hu, Zhen 5
- Robert, Claude 1
- Chartier, Michel 1
- Jacob, Jeremy 6
- Colombano, Stefan 2
- Ignatiadis, Ioannis 2,5
- Gourry, Christophe 2
- Laboratoire de Physique et de Chimie de l’Environnement et de l’Espace (LPC2E), CNRS et Université d’Orléans, 3A av. de la recherche scientifique, 45071, Orléans cedex 2, France
- Bureau de Recherches Géologiques et Minières (BRGM), 3 av. Claude Guillemin, 45060 Orléans cedex 2, France
- Ecole Nationale Supérieure en Environnement, Géoressources et Ingénierie du Développement durable (ENSEGID), Université Bordeaux III
- Institut National de la Recherche Agronomique (INRA), UR 0272 Science du sol, Centre de recherche d’Orléans, CS 40001 Ardon, 45075 Orléans cedex, France
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
- Laboratoire des Sciences du Climat et de l’Environnement, UMR 8212 CNRS-CEA UVSQ, Domaine du CNRS, 91198, Gif sur Yvette, France