Air pollution and meteorology monitoring report. Deliverable 5.2. Project iSCAPE, Grant Agreement number: 689954

This report documents good quality meteorological and air pollution data obtained as result of the experimental field campaigns carried out in the different iSCAPE cities, namely Bologna, Dublin, Guildford and Vantaa. We recall that these cities are those with a focus on “physical” interventions, or rather on the evaluation of the impacts of Passive Control Systems (PCSs) on air pollution mitigation through the analysis of environmental data gathered during different monitoring campaigns, as described in D3.3. Other iSCAPE cities focused instead on behavioral interventions (Hasselt) and infrastructural solutions (Bottrop). The data obtained so far were carefully checked for their quality and their usage is twofold. From one hand measured data will be used for the validation of the model simulations run as part of other WPs (e.g. WP4 and WP6) and, on the other hand, they will provide the scientific basis to establish the efficacy of different PCSs including low boundary walls and green infrastructure (trees and hedges), in each city. Specifically, regarding this last goal, preliminary results show a strong dependency of the impact of the different PCSs on the local morphology of the analyzed urban environment and the local meteorological conditions impacts, leading to both mitigation and deterioration effects of air pollution. It is worth to recall that this is a preliminary version of the report which will be updated later by the end of the project when all the monitoring activities will be completed, and further analyses of the results will be carried out meanwhile. The instrumental setup and protocols, along with the description of the experimental sites, already presented in D3.3, are here summarized and updated. This report also provides some preliminary results about the efficacy of the different PCSs in contrasting/reducing air pollution and/or reducing the UHI (Urban Heat Island) effect at urban level, especially in the city of Bologna, where as noted in D1.4 and thoroughly studied in D6.1, the UHI phenomenon is large and show very strong diurnal variations. To this end, and for the purpose of detailing and analyzing the UHI phenomenon at the street/neighborhood scale, within the experimental campaigns conducted in Bologna, two intensive thermographic campaigns were performed, and this report presents the preliminary results obtained, which show well the efficacy of trees as regards the thermal comfort within the urban environment. This fulfils the objective of detailing air pollution levels and meteorological conditions in the target cities, as measured within the different pilots.