A5081226138- Air Quality and Health Impacts
- Vehicle emissions and performance
- Atmospheric chemistry and aerosols
- Thermochemical Biomass Conversion Processes
- Energy and Environment Impacts
- Particle Dynamics in Fluid Flows
- Catalytic Processes in Materials Science
- Cyclone Separators and Fluid Dynamics
- Coagulation and Flocculation Studies
- Nuclear Materials and Properties
- Aerosol Filtration and Electrostatic Precipitation
- Coal and Its By-products
- nanoparticles nucleation surface interactions
- Nuclear and radioactivity studies
- Advancements in Battery Materials
- Toxic Organic Pollutants Impact
- Air Quality Monitoring and Forecasting
- Nuclear reactor physics and engineering
- Combustion and Detonation Processes
- Graphite, nuclear technology, radiation studies
- Combustion and flame dynamics
- Graphene research and applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Radioactive element chemistry and processing
University of Eastern Finland
2014-2024
Finland University
2009-2023
VTT Technical Research Centre of Finland
2006-2015
Aalto University
2014
Finnish Meteorological Institute
1984-2009
Joensuu Science Park
2006-2008
Tohoku University
2008
Kuopio University Hospital
2007
Tampere University
1993
Helsinki Institute of Physics
1993
Particle and gaseous emissions of a top-feed pellet stove were studied in laboratory conditions. Pellets made separate stem bark materials five different wood species commercial product used as fuels. The study included the determination particle number concentration, size distribution, fine-particle mass (PM1.0), CO, CO2, NOx, volatile organic compounds (VOC). PM1.0 emission was analyzed for inorganic substances, carbon, elemental carbon. Thermodynamic equilibrium calculations performed to...
The importance of nanotechnologies and engineered nanoparticles has grown rapidly. It is therefore crucial to acquire up-to-date knowledge the possible harmful health effects these materials. Since a multitude different types nanosized titanium dioxide (TiO2) particles are used in industry, we explored their inflammatory potential using mouse cell models. BALB/c mice were exposed by inhalation for 2 h, h on 4 consecutive days, or days weeks several commercial TiO2 nanoparticles, SiO2...
Background Ship engine emissions are important with regard to lung and cardiovascular diseases especially in coastal regions worldwide. Known cellular responses combustion particles include oxidative stress inflammatory signalling. Objectives To provide a molecular link between the chemical physical characteristics of ship emission they elicit identify potentially harmful fractions shipping aerosols. Methods Through an air-liquid interface exposure system, we exposed human cells under...
Abstract. Organic aerosols (OA) derived from small-scale wood combustion emissions are not well represented by current inventories and models, although they contribute substantially to the atmospheric particulate matter (PM) levels. In this work, a 29 m3 smog chamber in ILMARI facility of University Eastern Finland was utilized investigate formation secondary organic aerosol (SOA) modern masonry heater commonly used northern Europe. Emissions were oxidatively aged for variety dark (i.e., O3...
Abstract The absorption Ångström exponent (AAE) describes the spectral dependence of light by aerosols. AAE is typically used to differentiate between different aerosol types for example., black carbon, brown and dust particles. In this study, variation was investigated mainly in fresh emissions from fuel combustion types, including ships, buses, coal‐fired power plants, residential wood burning. results were assembled provide a compendium values emission sources. A dual‐spot aethalometer...
Residential wood combustion (RWC) emits high amounts of volatile organic compounds (VOCs) into ambient air, leading to formation secondary aerosol (SOA), and various health climate effects. In this study, the emission factors VOCs from a logwood-fired modern masonry heater were measured using Proton-Transfer-Reactor Time-of-Flight Mass Spectrometer. Next, aged in 29 m3 Teflon chamber equipped with UV black lights, where dark photochemical atmospheric conditions simulated. The main...
Emissions from the combustion of agricultural biomasses have not been studied extensively. In this study, effects different and mixed fuels on fine particle (PM1) gas emissions a residential cereal burner were investigated. The seeds oat rape, rape bark pellets, wood pellets main fuels. addition, was with peat kaolin kaolin. NOx, SO2, HCl clearly higher or mixed-cereal than pure fuel. carbon monoxide (CO), organic gaseous (OGC), PM1 numbers did differ significantly fuels, although fuel ash...
Fine-particle and gaseous emissions from a modern small-scale pellet boiler were studied with different air-staging settings under load operations. Commercial wood pellets used in the boiler, which worked top-feed fuel input. Partial operation experiments included half-load 12.5 kW low-load 7 kW. In experiments, amounts of primary air decreased by 71 82% while simultaneously keeping constant total air/fuel ratios. This was found to result considerably lower than during normal full-load...
The market of pellet fuels has undergone drastic changes in Europe recent years. Traditional raw materials have become inaccessible due to unavailability or dramatic increases prices. It is possible use other feasible for production. However, novel can disadvantages with respect usability and emissions, these issues need be considered before such are taken into wide-scale Such factors especially important small-scale combustion. Fine particle gaseous emissions from 21 various were studied a...
Carbon nanotubes (CNTs) have the potential to impact technological and industrial progress, but their production use may, in some cases, cause serious health problems. Certain rod-shaped multiwalled CNTs (rCNTs) can, fact, induce severe asbestos-like pathogenicity mice, including granuloma formation, fibrosis, even cancer. Evaluating comparability between alternative hazard assessment methods is needed ensure fast reliable evaluation of potentially adverse effects these materials. To compare...
One of the major areas for increasing use renewable energy is in traffic fuels e.g. bio-based diesel engines especially commuter traffic. Exhaust emissions from fossil fuelled are known to cause adverse effects on human health, but there very limited information available how new may change harmfulness emissions, particles (PM). We evaluated PM a heavy-duty EURO IV engine powered by three different fuels; toxicological properties emitted were investigated. Conventional fuel (EN590) and two...
Ambient inhalable particulate matter (PM) is a serious health concern worldwide, but especially so in China where high PM concentrations affect huge populations. Atmospheric processes and emission sources cause spatial temporal variations concentration chemical composition, their influence on the toxicological characteristics of are still inadequately understood. In this study, we report an extensive characterization size-segregated urban air collected August October 2013 from Nanjing,...