PEMS, RSD and Emission Models

This workshop, on May 27 20:00 UTC, will gather cutting edge research on this topic. To participate, click on:

1st PEMS, RSD and Emission Models Workshop (PREM)

May 27. 2021, 20:00-22:00 UTC (17:00 Brazil time)

  • 20:00 Introduction: Dr. Sergio Ibarra-Espinosa
  • 20:03 Vehicular emissions and air quality. Dr. Edmilson Dias de Freitas
  • 20:15 Linking vehicle emission measurements to useful emission models. Dr. Robin Smit
  • 20:30 Vehicle Emissions Remote Sensing using EDAR. Dr. Karl Ropkins
  • 20:45 PEMS measurements. Dr. Mauricio Osses Alvarado 21:00 An international bottom-up inventory of public transport emissions​. Dr. Rafael H. M. Pereira, Dr. Joao Pedro Bazzo Vieiraand Dr. Pedro Andrade
  • 21:15 NOx emission modelling. Dr. Zamir Mera - Docente FICA
  • 21:30 Evaluation of TDI Engine Nitrogen Oxide Emissions in Chile Measured with PEMS. Kevin Basoa Barraza and Sebastian Tolvett
  • 21:45 PEMS development. MSc.André Forcetto
  • 22:00 Final Wrap-up


Invited Bio
André Forcetto Andre Forcetto has a master’s degree in Environment, Health and Sustainability from Universidade de São Paulo and he’s a doctoral student in Atmospheric Sciences at IAG-USP, focused on the development of a low-cost PEMS. Andre works in the Environmental Company of Sao Paulo State/Brazil (CETESB) since 1991, in the vehicles’ homologation department and collaborates in the development of technical normatives for pollution control from vehicles.
Edmilson Dias de Freitas Dr. Edmilson Freitas is a Full Professor at the Department of Atmospheric Sciences of IAG-USP, São Paulo, Brazil, focusing on Applied Meteorology and Numerical Modeling of the Atmosphere. His research covers issues related to urban regions and their interactions with the surrounding areas and associated atmospheric circulations, and the results of it on air quality, including the application of model results to public policy establishment and actions of civil protection. He is currently the coordinator of the Working Group on Brazilian Fuels, Vehicle Technologies and Emissions Program (PCVE), together with the Brazilian Association of Automotive Engineering (AEA).
João Bazzo João Bazzo has a master’s degree in Environmental Engineering from Federal University of Paraná and he is currently working as a Research Assistant at the Institute for Applied Economic Research (IPEA). João is interested in vehicle emissions in the urban environment and its relationship with the improvement of public and active transportation and reducing inequalities in access to opportunities.
Karl Ropkins Dr Karl Ropkins a Senior Research Fellow in Transport Studies, Faculty of Environment, University of Leeds in the UK and private consultant. Karl’s interests focus on the development, deployment and use of environmental measurement systems. His most recent work collaborations on the EU H2020 project ‘City Air Remote Emissions Sensing (CARES)’ ( and the TRANSITION Clean Air Network (
Kevin Basoa Barraza Kevin Basoa is a Mechanical Engineer and is finishing a master in atmospheric science in Chile. He has worked on different research projects that range from measuring emissions to modeling them in the atmosphere.
Mauricio Osses Dr. Mauricio Osses is Delegate director and Prof. at Universidad Santa Maria. He possesses a PhD in vehicular emissions from Leeds University and his research covers vehicular emissions measurement, energy and transport.
Pedro Andrade Pedro Andrade is a Technologist at the National Institute for Space Research (INPE). He has a Doctorate degree in Applied Computing (INPE), and his research interests are Geoinformatics, Environmental Modeling, and Social Simulation. He leads the technological development of the platforms TerraME ( and AdaptaBrasil ( ), and has contributed to several open-source projects.
Rafael H. M. Pereira. Rafael obtained his PhD in Geography from the Transport Studies Unit (TSU) at Oxford University. He is currently the head of data science at the Department of Urban, Regional and Environmental studies at Ipea, the Institute for Applied Economic Research in the Brazilian Federal government. His research focuses on the role of urban and transport policies in the spatial organization of cities and access to opportunities, as well as their distributional impacts on social and health inequalities.
Robin Smit Dr Robin Smit is a Director at Transport Energy/Emission Research (TER) and an Adjunct Associate Professor with the University of Technology Sydney, Australia. Robin is passionate about transport and environment and has over 25 years work experience in emission measurement/modelling and impact assessment (air pollution, greenhouse gas emissions) in Europe, Australia, New Zealand and the Middle East
Sebstian Tolvett Sebastián Tolvett (M.Sc.) has more than 15 years of experience working in the field of transport emissions. His career began at the International Center for Sustainable Systems Research in California, through the Center he collaborated on more than 15 emissions projects in Brazil, China, Chile, Colombia, Guatemala, Mexico, Turkey and the United States.Since 2015, he has held an academic position at the Universidad Tecnológica Metropolitana, Chile, where he established the mobile source emissions research area in the department of mechanical engineering. Currently, he works as an assistant researcher at the CMT-Motores Institute of the Polytechnic University of Valencia, Spain, where he deepens his knowledge of European engine calibration and emission control
Sergio Ibarra-Espinosa Sergio Ibarra-Espinosa is doctor in Atmospheric Sciences Universidade de São Paulo, postdoc in vehicular emissions at the Universidade de São Paulo and also Chinese Academy of Sciences, Master in Environmental Planning and BS Risks prevention and environment. Sergio has been studying vehicular emissions during 13 years using models and data-science. During PhD developed the open-source model Vehicular Emission Inventory model (VEIN) to compile fuel-calibrated emissions estimates and the model EIXPORT to generate NetCDF emissions files ready to use with air quality models such as WRF Chem, MUNICH, and EURAD-IM, with several chemical mechanisms.
Zamir Mera Zamir Mera is Assistant Professor at Universidad Técnica del Norte, Ecuador. He has a PhD in Mechanical Engineering from University Institute for Automobile Research (INSIA) at Universidad Politécnica de Madrid. His research interests cover vehicle emissions, energy and environment, and transportation.