Urban areas are the centres of various activities which have multiple and diverse pollutant sources, emitting all kinds of air pollutants. In order to maintain a healthy air environment, availability of fine resolution air quality data and ability to visualize it at a neighborhood scale, is very much crucial. This paper presents how real-time sensor-based air quality monitors are best suitable to generate high spatial resolution pollution maps. Pollution maps develop the understanding of spatial distribution and extent of pollution and also enables hotspot identification. Real-time monitoring provides an opportunity to capture air quality fluctuations and also aids in spotting sudden changes in pollutant concentration to follow up with action. Collaboration and integration with various platforms enables data-driven problem solving in a multidisciplinary manner.