This work aims to describe the Italian pilot study carried out within the frame of the H2020 D-NOSES project and discuss the opportunity to integrate different approaches in order to deal with complex situations. The pilot study was carried out in the municipal area between Castellanza, Marnate, and Olgiate Olona, where an odour problem has been lamented for years.

    As a first step of the project, 4 industries were identified as potential odour sources: a chemical plant, the municipal WWTP, a textile and dyeing industry, and the WWTP connected to the dyeing industry. In order to monitor the odour problem, it was proposed to combine the application of the D-NOSES methodology with the “traditional” way involving olfactometric measurements and dispersion modelling, the latter being the approach foreseen by the Regional guideline. The comparison of the citizens’ observations and the model outcomes allowed to verify the compatibility of the odour observations with the emissions from the two WWTPs.

dnoses deliverablesD-NOSES stands for Distributed Network for Odour Sensing, Empowerment and Sustainability. This 3 year-long project was supported by International Associations, experts in citizen science, odour and sustainability experts, local administrations and public bodies. The deliverables of this 3.2 million Euros project are just being published, so if you wish to become a "master" in the use of citizen science to map odours, here you have much information to learn a bit more.

   This DNOSES project is a European Horizon 2020 project that studied the use of mapping odour annoyance to describe and study the impact of this environmental vector. The idea was to launch several case studies to see how better use this tool that links odour with annoyance. This project is over and now all the deliverables are available.

LombardyDCR   The Regional Council of Lombardy, Italy, published a D.C.R. (Deliberazione Consiglio Regionale) on the 28th of July 2020, for the funding of the development of a platform to implement a control and monitoring system for odorous inputs. The decision of the Regional Environmental Administration of Lombardia was taken after studying the results of the first successful project of mapping odours developed by the Italian Regional Environmental Administration of Marche.

   The idea is to develop an app to register odour observations by citizens so that the environmental regulator can make informed decisions with real time data is not new. There are many applications in the market developed for this purpose, and we have seen how successful this tool is in projects not only in Italy but in many other countries such as the USA, Norway, Australia, Germany, or Spain, to say a few examples of a trend that it is growing rapidly around the world. What it is however new here, is that for the second time, an Environmental Administration has taken the decision of develop an app rather than acquiring it from a private company.

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