 As per estimates by the UN, in 2050, 70% of the global population will be living in cities. That means we will be seeing a rapid increase in the use of automobiles, industrial production, and rapid deforestation. All leading to air pollution and environmental deterioration. A smart city needs to monitor its environmental conditions and identify the sources of pollution to mitigate them. Data is the key to understanding the impact of pollution sources. Regulatory environmental monitoring technologies are not scalable due to its cost, size, and energy consumption. By deploying a network of sensor nodes, we can monitor air quality, noise and meteorological parameters across the city. OISM Palludrone is an ideal solution for environmental monitoring in smart cities. It is a compact and scalable solution, capable to monitor all the important environmental parameters like dust particles PM 2.5 and PM 10, gaseous pollutants like SOX, NOX, CO, O3, noise levels and ambient parameters like temperature, humidity, UV radiation and ambient light. By adding disaster detection systems like flood, rainfall, wind speed and direction, the citizens can also be alerted beforehand in case of a catastrophic event. The solution is designed to be compatible with the available network and communication infrastructure of the city. The real-time data is transmitted to the city's command and control center, CCC, where it is available to the authorities for taking data-driven actions. Through pollution source detection, the city takes corrective measures to prevent and mitigate environmental deterioration. By collocating secondary data sources like CCTV footage, traffic data, satellite data and meteorological data, pollution sources can be identified on real-time. Based on the source of pollution, the relevant city authority can act immediately to control pollution levels in the city. For instance, upon detection of increased carbon monoxide levels, authorities can identify its sources like fires, trash burning or traffic congestion and trigger immediate actions. OISM has been working predominantly in the smart city space with more than 200 deployments. We are currently monitoring the environmental health of more than 10 million people across 10 major cities like Istanbul, Agra, Ferranasi, Gondinagar, Kakinada, Surat and many more. If you want to read about our smart city case studies, check the description below. To explore other applications, please click on the thumbnail below.