A5012711478- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Vehicle emissions and performance
- Air Quality Monitoring and Forecasting
- Plant responses to elevated CO2
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Wind and Air Flow Studies
- Thermal Radiation and Cooling Technologies
- Recycling and Waste Management Techniques
- Spectroscopy and Laser Applications
- Gas Dynamics and Kinetic Theory
- Environmental and Industrial Safety
- Cyclone Separators and Fluid Dynamics
- Microplastics and Plastic Pollution
- Aeolian processes and effects
Center for Physical Sciences and Technology
2013-2024
Vilnius University
2020
Abstract. Soot, or black carbon (BC), aerosol is a major climate forcer with severe health effects. The impacts depend strongly on particle number concentration, size and mixing state. This work reports two field campaigns at nearby urban rural sites, 65 km apart, in southern Sweden during late summer 2018. BC was measured using single-particle soot photometer (SP2) Aethalometers (AE33). Differences concentrations between the sites are driven primarily by local traffic emissions. Equivalent...
Both organic carbon (OC) and black (BC) mass concentrations were measured in Lithuania at coastal/marine (Preila), rural (Rūgšteliškis), urban background (Vilnius) environments have been analyzed to infer the spatial temporal distributions of OC/BC ratios from May 2013 October 2014. reflected location different sites, as well possible sources influencing air quality. The results an industrialized populated area indicated that biomass combustion for heating contributed BC OC concentration....
One-year continuous measurements of aerosol black carbon (BC) at the background site Preila (55°55′N, 21°00′E, 5 m a.s.l., Lithuania) were performed. Temporal and spatial evolution transport biomass burning (BB) volcanic aerosols observed within this period explained by air mass backward trajectory analysis in conjunction with fire detection data produced MODIS Rapid Response System AERONET database. The surface Angström exponent absorption coefficient done separately for shorter longer...
Concentrations of aerosol particles in Poland and their sources are rarely discussed peer-reviewed journal articles despite serious air quality issues. A source apportionment carbonaceous was performed during winter at a rural background environment field site north-eastern Poland. Data were used light absorption seven wavelengths levoglucosan concentrations along existing monitoring PM2.5, organic carbon elemental (OC/EC) the Diabła Góra EMEP between January 17 March 19 intensive campaign...
While the impacts of climate change on wildfires and resulting air pollution levels have been observed, little is known about how indoor filtering systems are performing under intensive smoke conditions. For this aim, particle number size distribution concentration in a range 0.5–18 µm equivalent black carbon (eBC) mass were measured modern office with mechanical ventilation system. Measurements took place from 30 September to 6 October 2020 Center for Physical Sciences Technology (FTMC)...
For air quality management it is becoming increasingly important to be able assess the quantity and properties of biomass-burning-related aerosol. Due different chemical compositions morphologies, black carbon (BC) brown (BrC) demonstrate diverse optical as well an impact on quality. In this study, we analyzed composition light-absorbing carbonaceous aerosol at urban background station during residential heating season. addition, BC BrC levels were assessed in six areas city characterized by...
In situ investigation results of aerosol optical properties (absorption and scattering) chemical composition at an urban background site in Lithuania (Vilnius) are presented. Investigation was performed May-June 2017 using speciation monitor (ACSM), a 7-wavelength Aethalometer 3-wavelength integrating Nephelometer. A positive matrix factorisation (PMF) used for the organic mass spectra analysis to characterise sources ambient (OA). Five OA factors were identified: hydrocarbon-like (HOA),...
Aerosol particle observations are needed to determine the conditions of formation and growth in different environments. This research focuses on new (NPF) events hemi-boreal forest environment at Aukštaitija Integrated Monitoring Station (IMS) (55°26ʹN 26°04ʹE, 170 m above sea level). The parameterisation aerosol Nucleation I (3–10 nm), II (10–20 nm) Aitken (20–100 modes was performed, their inputs total number concentration (PNC) distribution were assessed. It has been estimated that around...
Urban science plays a pivotal role in understanding the complex interactions between fireworks, air quality, and urban environments. Dense firework smoke worsens quality poses health hazard to public. In this study, we show situation where extremely foggy meteorological conditions coincided with intense anthropogenic emissions, including an area. For first time, chemical composition sources of non-refractory submicron aerosol (NR-PM1) outdoor indoor were characterized Vilnius (Lithuania)...
Open biomass burning (OBB) is a significant air pollution source, but it still not clear to what extent OBB events affect indoor quality [1]. Outdoor and measurements of submicron particulate matter (PM1) were conducted on 25–29 April (2019) in the capital city Vilnius (Lithuania). Fires from neighbouring countries (Belarus, Ukraine Russia) vicinity broke out during measurement campaign. The temporal evolution transport plume investigated by combining mass backward trajectory analysis fire...
Volatile organic compounds (VOCs) emitted by trees in response to abiotic stress evoke high levels of secondary aerosol (SOA) compounds. Few techniques exist provide chemically-resolved submicron (PM 1 ) particle mass concentrations and source apportionment stress-induced emissions from SOA formation. The chemical composition atmospheric particles was characterized using an speciation monitor (ACSM) at a mixed-mature forest site – the Aukštaitija Integrated Monitoring Station eastern part...