The main objective of the EU research project TRANSPHORM was to assess the health impact of transport-related airborne particulate matter (PM). Integrated assessment tools were developed for scales ranging from cities to Europe as a whole. The budget was 9 million euro and involved 20 partners from 12 countries.
Transport-related PM emissions were determined on both global (EU) and urban scales, based on transport activity data and improved emission factors of ultra-fine particle number (PN0.1) and mass fractions of PM1, PM2.5 and PM10.
To map transport activities in EU cities, TML developed an urban transport model that holds an increased level of spatial detail compared to state-of-the-art models. The model determines the impact on PM emissions of low emission zones, car sharing, congestion pricing and other traffic management measures in each of the 900 biggest EU cities individually. Detailed inventories of transport activities (vehicle kilometres) and modal shares for each of these cities were set up as a basis. The urban transport model forecasts transport activities in European cities up to 2030.
In order to quantify exposure to airborne PM in urban environments resulting from traffic, road, shipping, rail and aviation, we developed improved and integrated air quality dispersion and exposure models for urban and regional scales. Targeted measurements were conducted in Rotterdam, Helsinki, Oslo, London, Athens and Prague for source apportionment, exposure assessment and model evaluation.
The TRANSPHORM project finally delivered an integrated method to assess policies, measures or strategies that reduce the health impact of transport-related PM emissions. The developed tool was used to generate mitigation and adaptation strategies for European cities and to make policy recommendations for the European Commission.


European Commission, FP7


University of Hertfordshire (project leader - UK), Institute of Physics (LT), URM-UTVAR ROZVOJE HLMESTA PRAHY (CZ), Helmholtz Zentrum München (DE), Terveyden Ja Hyvinvoinnin Laitos (FI), Schweizerisches Tropeninstitut (CH), Ivl Svenska Miljoeinstitutet, (SE), Ilmatieteen Laitos (FI), Deutsches Zentrum für Luft- und Raumfahrt (DE), Danmarks Meteorologiske Insitut (DK), Norsk Institutt for Luftforskning (NO), Meteorologisk Institutt (NO), Universität Stuttgart (DE), TNO (NL), EC - JRC (ES), Imperial College of Science, Technology and Medicine (UK), Karolinska Institutet (SE), Universiteit Utrecht (NL), Institute of Occupational Medicine (UK), Aristotelio Panepistimio Thessalonikis (EL)

Our team

Griet De Ceuster, Filip Vanhove, Isaak Yperman
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