A5050239473- Air Quality and Health Impacts
- Atmospheric chemistry and aerosols
- Vehicle emissions and performance
- Air Quality Monitoring and Forecasting
- Wind and Air Flow Studies
- Climate Change and Health Impacts
- Atmospheric aerosols and clouds
- Maritime Transport Emissions and Efficiency
- Fire effects on ecosystems
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Noise Effects and Management
- Fire dynamics and safety research
- Particle Dynamics in Fluid Flows
- Urban Heat Island Mitigation
- Energy and Environment Impacts
- Smart Materials for Construction
- Combustion and Detonation Processes
- Urban Transport and Accessibility
- Allergic Rhinitis and Sensitization
- Environmental Policies and Emissions
- Atmospheric Ozone and Climate
- Toxic Organic Pollutants Impact
- Climate variability and models
- Indoor Air Quality and Microbial Exposure
Finnish Meteorological Institute
2016-2025
University of Hertfordshire
2014-2024
Quality Research
2023
Finnish Geospatial Research Institute
2012-2022
IVL Swedish Environmental Research Institute
2016
Norwegian Institute of Public Health
2016
Swedish Meteorological and Hydrological Institute
2016
Aarhus University
2016
NILU
2016
Finnish Environment Institute
2006-2016
We present a comprehensive global shipping emission inventory and the activities of ships for year 2015. The emissions were evaluated using Ship Traffic Emission Assessment Model (STEAM3), which uses Automatic Identification System data to describe traffic ships. have improved model regarding (i) evaluation missing technical specifications ships, (ii) treatment in case sparse satellite AIS-data. developed collection processing available information on specifications, assimilation techniques....
Abstract. A method is presented for the evaluation of exhaust emissions marine traffic, based on messages provided by Automatic Identification System (AIS), which enable identification and location determination ships. The use AIS data facilitates positioning ship with a high spatial resolution, limited only inaccuracies Global Positioning (typically few metres) that used in vessel navigation. are computed relationship instantaneous speed to design speed, detailed technical information...
Abstract. A method is presented for the evaluation of exhaust emissions marine traffic, based on messages provided by Automatic Identification System (AIS), which enable positioning ship with a high spatial resolution (typically few tens metres). The model also takes into account detailed technical data each individual vessel. previously developed was applicable evaluating NOx, SOx and CO2. This paper addresses substantial extension modelling system, to allow mass-based particulate matter...
This global study, which has been coordinated by the World Meteorological Organization Global Atmospheric Watch (WMO/GAW) programme, aims to understand behaviour of key air pollutant species during COVID-19 pandemic period exceptionally low emissions across globe. We investigated effects differences in both and regional local meteorology 2020 compared with 2015–2019. By adopting a globally consistent approach, this comprehensive observational analysis focuses on changes quality around cities...
Abstract. This review provides a community's perspective on air quality research focusing mainly developments over the past decade. The article perspectives current and future challenges as well needs for selected key topics. While this paper is not an exhaustive of all areas in field quality, we have topics that feel are important from policy perspectives. After providing short historical overview, focuses improvements characterizing sources emissions pollution, new observations...
Abstract. This paper investigates a potential of two remotely sensed wild-land fire characteristics: 4-μm Brightness Temperature Anomaly (TA) and Fire Radiative Power (FRP) for the needs operational chemical transport modelling short-term forecasting atmospheric composition air quality. The treatments TA FRP data are presented methodology evaluating emission fluxes primary aerosols (PM2.5 total PM) is described. method does not include complicated analysis vegetation state, fuel load,...
Identification of aerosol types is important, because different have effects on health, visibility and climate change. The space‐borne lidar CALIOP on‐board the CALIPSO satellite provides information aerosols in separate layers that can be detected with this instrument. In study, subtypes measurements are compared daily derived from AERONET level 2.0 inversion data. categorized by single scattering albedo Ångström exponent values. comparison shows 70% agreement. Best agreement achieved for...
A birch pollen emission model is described and its main features are discussed. The development of the based on a double-threshold temperature sum that describes propagation flowering season naturally links to thermal time models predict onset duration flowering. For season, considers ambient humidity precipitation rate, both which suppress release, as well wind speed turbulence intensity, promote it. These dependencies qualitatively evaluated using aerobiological observations. Reflecting...
[1] A parameterization for the emission of sea-salt aerosol (SSA) particles is presented and its application in SILAM dispersion modeling system regional global SSA simulations discussed. The production term based on Monahan et al. experimental data from Martensson al., Clarke observational were used to extend flux as small 10 nm (dry particle diameter DP) account water temperature salinity. result an analytical formulation describing fluxes with Dp between μm. This source function...
Abstract. Urban air pollution is associated with significant adverse health effects. Model-based abatement strategies are required and developed for the growing urban populations. In initial development stage, these focussed on exceedances of quality standards caused by high short-term pollutant concentrations. Prediction effects implementation information systems require accurate forecasting episodes population exposure, including modelling emissions, meteorology, atmospheric dispersion...
Abstract. Emissions originating from ship traffic in European sea areas were modelled using the Ship Traffic Emission Assessment Model (STEAM), which uses Automatic Identification System data to describe activity. We have estimated emissions whole of Europe 2011. report emission totals, seasonal variation, geographical distribution emissions, and their disaggregation between various types flag states. The total CO2, NOx, SOx, CO, PM2.5 for year 2011 be 121, 3.0, 1.2, 0.2, 0.2 million tons,...
Abstract. An extensive inventory of marine exhaust emissions is presented in the northern European emission control area (ECA) 2009 and 2011. The SOx, NOx, CO2, CO PM2.5 were evaluated using Ship Traffic Emission Assessment Model (STEAM). We have combined information on individual vessel characteristics position reports generated by automatic identification system (AIS). limitations from to 2011 had a significant impact reducing both SOx PM2.5. predicted originated IMO (International...
Land-use regression (LUR) and dispersion models (DM) are commonly used for estimating individual air pollution exposure in population studies. Few comparisons have however been made of the performance these methods. Within European Study Cohorts Air Pollution Effects (ESCAPE) we explored differences between LUR DM estimates NO2, PM10 PM2.5. The ESCAPE study developed outdoor levels based on a harmonised monitoring campaign. In thirteen areas further applied models. We compared at residential...
Abstract. Residential wood combustion (RWC) is an important contributor to air quality in numerous regions worldwide. This study the first extensive evaluation of influence RWC on ambient several Nordic cities. We have analysed emissions and concentrations PM2.5 cities within four countries: metropolitan areas Copenhagen, Oslo, Helsinki city Umeå. evaluated for relevant urban source categories modelled atmospheric dispersion regional scales. The emission inventories were based local surveys,...