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Smart City initiative is an attempt to identify the technologies that can solve problems which cities must confront, such as poor air quality and health related issues, and hence create a network of partner cities to share the ideas for future progress. In this work an issue which is to facilitate smarter cities through world sensing is discussed. Food safety in rural and urban areas is a very important topic, as it closely affects the health of citizens. Recent studies highlight that raw milk contain pathogenic organisms which could result in illness if consumed which can increase the incidence of diseases and deteriorate the quality of life. Hence, it is necessary to develop tools for real-time and smart sensing for quality monitoring, so and to make appropriate and timely decision. In this paper, we present uSense, a low-cost cooperative monitoring tool that allows one to know, in real-time, the concentrations of gases in raw milk. As …