A5076250618- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Air Quality Monitoring and Forecasting
- Toxic Organic Pollutants Impact
- Atmospheric and Environmental Gas Dynamics
- Analytical Chemistry and Chromatography
- Advanced oxidation water treatment
- Advanced Photocatalysis Techniques
- Plant responses to elevated CO2
- Odor and Emission Control Technologies
- TiO2 Photocatalysis and Solar Cells
- Hungarian Social, Economic and Educational Studies
- Municipal Solid Waste Management
- nanoparticles nucleation surface interactions
- Marine and coastal ecosystems
- Aquatic Ecosystems and Phytoplankton Dynamics
- Environmental Toxicology and Ecotoxicology
- Energy and Environment Impacts
- Thermochemical Biomass Conversion Processes
- Microfluidic and Capillary Electrophoresis Applications
- Vehicle emissions and performance
- Indoor Air Quality and Microbial Exposure
- Isotope Analysis in Ecology
University of Pannonia
2009-2023
Veszprémi Érseki Hittudományi Fõiskola
1996-2018
Magyar Agrár- és Élettudományi Egyetem
2012-2018
Hungarian Academy of Sciences
2001-2012
Helmholtz Zentrum München
2010
Stockholm University
2004-2005
Abstract. In this paper we describe and summarize the main achievements of European Aerosol Cloud Climate Air Quality Interactions project (EUCAARI). EUCAARI started on 1 January 2007 ended 31 December 2010 leaving a rich legacy including: (a) comprehensive database with year observations physical, chemical optical properties aerosol particles over Europe, (b) measurements in four developing countries, (c) airborne aerosols clouds Europe during May 2008, (d) modeling tools to study processes...
Abstract. We present comprehensive results on continuous atmospheric cluster and particle measurements in the size range ~1–42 nm within European Integrated project Aerosol Cloud Climate Air Quality interactions (EUCAARI) project. focused characterizing spatial temporal variation of new formation events relevant parameters across Europe. Different types air ion mobility spectrometers were deployed at 12 field sites Europe from March 2008 to May 2009. The conducted a wide variety...
Abstract. Two years of harmonized aerosol number size distribution data from 24 European field monitoring sites have been analysed. The results give a comprehensive overview the near surface particle concentrations and distributions between 30 500 nm dry diameter. Spatial temporal aerosols in sizes most important for climate applications are presented. We also analyse annual, weekly diurnal cycles concentrations, provide log-normal fitting parameters median distributions, guidance notes...
Atmospheric fine aerosol ( d p < 1.5 μm) was collected at a rural site in Hungary from January to September 2000. The total carbon concentration ranged 5 13 μg m −3 and 3 6 the first three months rest of sampling period, respectively. On average, water‐soluble organic (WSOC) accounted for 66% independent season. A variable fraction constituents (38–72% WSOC depending on sample) separated inorganic ions isolated pure form by using solid phase extraction copolymer sorbent. This...
Abstract. Ambient continental-rural fine aerosol (K-puszta, Hungary, PM1.5) was sampled on quartz fibre filters in winter and summer 2001. Water-soluble matter (WSM) extracted MilliQ-water, and, a second step, solid phase extraction used to isolate the less hydrophilic fraction (ISOM) of water-soluble organic (WSOM) from remaining inorganic salts "most" (MHOM). This approach allowed ISOM, which constitutes major WSOM, be isolated ambient aerosols investigated pure form. Hygroscopic...
Limited information is available on the nature of organic compounds in tropospheric aerosol and their effect hygroscopic properties cloud condensation nuclei (CCN) ability. Here we analyze samples liquid droplets interstitial aerosol, concurrently collected during fog episodes, to determine how are partitioned between two reservoirs. By comparing concentration different carbon classes found reservoirs, find that acts as an efficient separator for (C) species basis chemical properties, with...
Abstract. Sugars and sugar-alcohols are demonstrated to be important constituents of the ambient aerosol water-soluble organic carbon fraction, tracers for primary biological particles (PBAP). In present study, levels four sugars (fructose, glucose, sucrose, trehalose) three (arabitol, inositol, mannitol) in aerosols have been quantified using a novel HPLC/HRMS-TOF (High Performance Liquid Chromatography combination with High Resolution Mass Spectrometry – Time Flight) method assess...
Abstract. We present results from the international field campaign DAURE (Determination of sources atmospheric Aerosols in Urban and Rural Environments Western Mediterranean), with objective apportioning fine carbonaceous aerosols. Submicron particulate matter (PM1) samples were collected during February–March 2009 July at an urban background site Barcelona (BCN) a forested regional Montseny (MSY). radiocarbon (14C) analysis for elemental organic carbon (EC OC) source apportionment these...
Complementary molecular and atomic signatures obtained from Fourier transform ion cyclotron resonance (FTICR) mass spectra NMR provided unequivocal attribution of CHO, CHNO, CHOS, CHNOS series in secondary organic aerosols (SOA) high-resolution definition carbon chemical environments. Sulfate esters were confirmed as major players SOA formation constituents its water-soluble fraction (WSOC). Elevated concentrations SO2, sulfate, photochemical activity shown to increase the proportion...
A representative lignin‐type component from biomass burning aerosol has been shown to react with OH radicals in model cloud water yielding colored organic species. In this paper we investigated the chemical properties of complex reaction products formed 3,5‐dihydroxybenzoic acid. The was followed by UV‐VIS spectrophotometry, liquid chromatography, electrospray‐mass spectrometry, thermally assisted hydrolysis and methylation‐gas chromatography/mass spectrometry a thermal method. This provides...
Abstract. Organosulfates have recently come into the focus of organic aerosol research as potentially important components water-soluble secondary (SOA) which now dominate tropospheric fine aerosol. Their presence has been confirmed by identification sulfate esters abundant biogenic carbonyl compounds in both smog chamber and continental However, none studies able to determine mass contribution organosulfates SOA. In this paper, possibly very first attempt quantify ambient aerosol, we...
Although particulate organic and elemental carbon (OC EC) are important constituents of the suspended atmospheric matter (PM), measurements OC EC much less common more uncertain than e.g. ionic components PM. In framework research infrastructures supported by European Union, actions have been undertaken to determine mitigate sampling artefacts, assess comparability data obtained in a network 10 observatories across Europe. Positive artefacts (from 0.4 2.8 μg C/m3) analytical discrepancies...
Abstract. The monosaccharide anhydrides (MAs) levoglucosan, galactosan and mannosan are products of incomplete combustion pyrolysis cellulose hemicelluloses, found to be major constituents biomass burning (BB) aerosol particles. Hence, ambient particle concentrations levoglucosan commonly used study the influence residential wood burning, agricultural waste wildfire emissions on air quality. A European-wide intercomparison analysis three was conducted based quartz fiber filter samples...
Abstract. It is a common practice in developing countries and some regions of Europe that solid wastes generated households (e.g. plastic beverage packaging other wastes, textile fibreboards, furniture, tyres, coloured-paper waste) are burned wood- or coal-fired stoves during the winter months. In Europe, types volume municipal waste virtually unknown because these activities illegal not recorded, with exception few media reports court cases. Even though particulate emissions from burning...
Abstract. In order to predict the physical properties of aerosol particles, it is necessary adequately capture behaviour ubiquitous complex organic components. One key which may affect this contribution components surface tension aqueous particles in moist atmosphere. Whilst qualitative effect compounds on solution tensions has been widely reported, our quantitative understanding mixed and inorganic/organic systems limited. Furthermore, unclear whether models that exist literature can...