As part of the citizens observatories conference, I represented Mapping for Change, providing an overview of community-led air quality studies that we have run over the past 4 years. Interestingly, as we started the work in collaboration with London Sustainability Exchange, and with help from the Open Air Laboratories programme the work can be contextualised within the wider context of NGOs work on citizen science, which was a topic that was covered in the conference.
The talk covered the different techniques that were used: eco-badges for Ozone testing, Wipe sampling, Diffusion tubes and particulate matter monitoring devices. In the first study, we also were assisted by Barbara Maher team who explore tree leaves for biomonitoring. The diffusion tubes are of particular importance, as the change in deployment and visualisation created a new way for communities to understand air quality issues in their area.
The use of a dense network of diffusion tubes became common in other communities over the past 4 years. I also cover the engagement of local authorities, with a year-long study in the Barbican with support from the City of London. There is a lesson about the diffusion of methodologies and approaches among community groups – with the example of the No to Silvertown Tunnel group carrying out a diffusion tubes study without linkage to Mapping for Change or London Sustainability Exchange. Overall, this diffusion mean that over 20 localised studies are emerging across London.
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