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Activity pattern and personal exposure to nitrogen dioxide in indoor and outdoor microenvironments
Kornartit, C.; Sokhi, R.S.; Burton, Agneta; Ravindra, K. (2010-01)People are exposed to air pollution from a range of indoor and outdoor sources. Concentrations of nitrogen dioxide (NO2), which is hazardous to health, can be significant in both types of environments. This paper reports ... -
Application of chemical transport model CMAQ to policy decisions regarding PM2.5 in the UK
Chemel, C.; Fisher, B.E.A.; Kong, X.; Vazhappilly Francis, Xavier; Sokhi, R.S.; Good, N.; Collins, W.J.; Folberth, G.A. (2014-01-01)This paper shows how the advanced chemical transport model CMAQ can be used to estimate future levels of PM2.5 in the UK, the key air pollutant in terms of human health effects, but one which is largely made up from the ... -
Assessment of the MACC reanalysis and its influence as chemical boundary conditions for regional air quality modeling in AQMEII-2
Giordano, L.; Brunner, D.; Flemming, J.; Hogrefe, C.; Im, U.; Bianconi, R.; Badia, A.; Balzarini, A.; Baro, R.; Chemel, C.; Curci, G.; Forkel, R.; Jimenez-Guerrero, P.; Hirtl, M.; Hodzic, A.; Honzak, L.; Jorba, O.; Knote, C.; Kuenen, J.J.P.; Makar, P.A.; Manders-Groot, A.; Neal, L.; Perez, J.L.; Pirovano, G.; Pouliot, G.; San Jose, R.; Savage, N.; Schroder, W.; Sokhi, R.S.; Syrakov, D.; Torian, A.; Tuccella, P.; Werhahn, J.; Wolke, R.; Yahya, K.; Žabkar, R.; Zhang, Y.; Galmarini, S. (2015-08)The Air Quality Model Evaluation International Initiative (AQMEII) has now reached its second phase which is dedicated to the evaluation of online coupled chemistry-meteorology models. Sixteen modelling groups from Europe ... -
Atmospheric polycyclic aromatic hydrocarbons: Source attribution, emission factors and regulation
Ravindra, K.; Sokhi, R.S.; Van Grieken, R. (2008)There is an increasing concern about the occurrence of polycyclic aromatic hydrocarbons (PAHs) in the environment as they are ubiquitous in ambient air and some of them are among the strongest known carcinogens. PAHs and ... -
Comparative analysis of meteorological performance of coupled chemistry-meteorology models in the context of AQMEII phase 2
Brunner, Dominik W.; Savage, Nick H.; Jorba, Oriol; Eder, Brian K.; Giordano, Lea; Badia, Alba; Balzarini, Alessandra; Baró, Rocío; Bianconi, Roberto; Chemel, C.; Curci, Gabriele; Forkel, Renate; Jiménez-Guerrero, Pedro; Hirtl, Marcus; Hodzic, Alma; Honzak, Luka; Im, Ulas; Knote, Christoph; Makar, Paul A.; Manders-Groot, Astrid; Van Meijgaard, Erik; Neal, Lucy S.; Pérez, Juan Luis Canovas; Pirovano, Guido; San José, Roberto; Schro¨der, Wolfram; Sokhi, R.S.; Syrakov, Dimiter E.; Torian, Alfreida; Tuccella, Paolo; Werhahn, Johannes; Wolke, Ralf; Yahya, Khairunnisa; Žabkar, Rahela; Zhang, Yang; Hogrefe, Christian; Galmarini, Stefano (2015-08)Air pollution simulations critically depend on the quality of the underlying meteorology. In phase 2 of the Air Quality Model Evaluation International Initiative (AQMEII-2), thirteen modeling groups from Europe and four ... -
Evaluation and application of a statistical model for assessment of long-range transported proportion of PM 2.5 in the United Kingdom and in Finland
Kukkonen, J.; Sokhi, R.S.; Luhana, L.; Harkonen, J.; Salmi, T.; Sofiev, M.; Karppinen, A. (2008) -
Evaluation of a CMAQ simulation at high resolution over the UK for the calendar year 2003
Chemel, C.; Sokhi, R.S.; Yu, Y.; Hayman, G.D.; Vincent, K.J.; Dore, A.J.; Tang, Y.S.; Prain, H.D.; Fisher, B. (2010)A comprehensive ‘operational’ evaluation of the performance of the Community Multiscale Air Quality (CMAQ) modelling system version 4.6 was conducted in support of pollution assessment in the UK for the calendar year 2003. ... -
Examination of the Community Multiscale Air Quality (CMAQ) model performance over the North American and European domains
Appel, K.W.; Chemel, C.; Roselle, S.J.; Vazhappilly Francis, Xavier; Hu, Rong-Ming; Sokhi, R.S.; Rao, S.T.; Galmarini, S. (2012)The CMAQ modeling system has been used to simulate the air quality for North America and Europe for the entire year of 2006 as part of the Air Quality Model Evaluation International Initiative (AQMEII). The operational ... -
Focus on exposure to air pollution and related health impacts
Hänninen, O.; Vardoulakis, S.; Sarigiannis, D.A.; Incecik, S.; Sokhi, R.S. (2011-12-01)Outdoor and indoor air pollution was recently identified as a key contributor to the environmental burden of disease in European countries (EBoDE Working Group 2011). Due to the time-activity profiles of contemporary ... -
Lagrangian modelling of plume chemistry for secondary pollutants in large industrial plumes
Middleton, D.R.; Jones, A.R.; Redington, A.L.; Thomson, D.J.; Sokhi, R.S.; Luhana, L.; Fisher, B. (2008)Industrial sources of nitrogen oxides range from boilers and metal furnaces to fossil fuel power stations. Current UK regulatory practice for these plumes adopts a fixed proportion of nitrogen dioxide, as a simple and ... -
Light scattering and absorption properties of dust particles retrieved from satellite measurements
Hu, R-M.; Sokhi, R.S. (2009)We use the radiative transfer model and chemistry transport model to improve our retrievals of dust optical properties from satellite measurements. The optical depth and absorbing optical depth of mineral dust can be ... -
Light scattering and absorption properties of dust particles retrieved from satellite measurements
Hu, R-M.; Sokhi, R.S. (2008)We use the radiative transfer model and chemistry transport model to improve our retrievals of dust optical properties from satellite measurements. The optical depth and absorbing optical depth of mineral dust can be ... -
Mechanisms responsible for the build-up of ozone over South East England during the August 2003 heatwave
Francis, X.V.; Chemel, C.; Sokhi, R.S.; Norton, E.G.; Ricketts, H.M.A.; Fisher, B.E.A. (2011-12-01)The Community Multiscale Air Quality (CMAQ) model is used in order to quantify reasons for the build-up of ozone over South East England during the August 2003 heatwave. Unlike previous studies, the effects of individual ... -
New algorithms and their application for satellite remote sensing of surface PM2.5 and aerosol absorption
Hu, R-M.; Sokhi, R.S.; Fisher, B. (2009)Estimation of Particulate Matter (PM) concentration and aerosol absorption is very important in air quality and climate studies. To date, smoke, mineral dust and anthropogenic pollutants are the most uncertain aerosol ... -
Operational, regional-scale, chemical weather forecasting models in Europe
Kukkonen, J.; Balk, T.; Schultz, D.; Baklanov, A.; Klein, T.; Miranda, A.I.; Monteiro, A.; Hirtl, M.; Tarvainen, V.; Boy, M.; Peuch, V.H.; Poupkou, A.; Kioutsioukis, I.; Finardi, S.; Sofiev, M.; Sokhi, R.S.; Lehtinen, K.; Karatzas, K.; San Jose, R.; Astitha, M.; Kallos, G.; Schaap, M.; Reimer, E.; Jakobs, H.; Eben, K. (2011)Numerical models that combine weather forecasting and atmospheric chemistry are here referred to as chemical weather forecasting models. Eighteen operational chemical weather forecasting models on regional and continental ... -
Performance characteristics of MM5-SMOKE-CMAQ for a summer photochemical episode in Southeast England, United Kingdom
Yu, Y.; Sokhi, R.S.; Kitwroon, N.; Middleton, D.R.; Fisher, B. (2008)In this study a modelling system consisting of Mesoscale Model (MM5), Sparse Matrix Operator Kernel Emissions (SMOKE) and Community Multiscale Air Quality (CMAQ) model has been applied to a summer photochemical period in ... -
Quantifying the imprint of a severe Hector thunderstorm during ACTIVE/SCOUT-O3 onto the water content in the upper troposphere/lower stratosphere
Chemel, C.; Russo, M.R.; Pyle, J.A.; Sokhi, R.S.; Schiller, C. (2009)The development of a severe Hector thunderstorm that formed over the Tiwi Islands, north of Australia, during the Aerosol and Chemical Transport in Tropical Convection/Stratospheric-Climate Links with Emphasis on the Upper ... -
Road traffic impact on urban atmospheric aerosol loading at Oporto, Portugal
Oliveira, C.; Pio, C.; Caseiro, A.; Santos, P.; Nunes, T.; Mao, H.J.; Luahana, L.; Sokhi, R.S. (2010)At urban areas in south Europe atmospheric aerosol levels are frequently above legislation limits as a result of road traffic and favourable climatic conditions for photochemical formation and dust suspension. Strategies ... -
A special issue of selected papers from the 7th International Conference on Air Quality - Science and Application : Istanbul, 24-27 March 2009
Butler, T.; Sokhi, R.S.; Kukkonen, J.; Baklanov, A.; Gauss, M. (2011)The study of urban and regional air quality remains as important as ever. In 2007, the number of people living in urban areas exceeded the number living in rural areas for the first time in history. Further continuation ... -
Trace gas/aerosol boundary concentrations and their impacts on continental-scale AQMEII modeling domains
Schere, K.; Mathur, R.; Roselle, S.; Rao, S.T.; Flemming, J.; Vautard, R.; Chemel, C.; Hu, Rong-Ming; Sokhi, R.S.; Colette, A.; Bessagnet, B.; Meleux, F.; Hogrefe, C.; Galmarini, S. (2012-06)Over twenty modeling groups are participating in the Air Quality Model Evaluation International Initiative (AQMEII) in which a variety of mesoscale photochemical and aerosol air quality modeling systems are being applied ...