The large majority of today's cars and trucks travel by using internal combustion engines that burn gasoline or other fossil fuels. The process of burning gasoline to power cars and trucks contributes to air pollution by releasing a variety of emissions into the atmosphere. Emissions that are released directly into the atmosphere from the tailpipes of vehicles are the primary source of vehicular pollution. With the increase in urbanization and industrialization and due to poor control on emissions, a great amount of particulate and toxic gasses are produced. So, in our proposed system we use of a spectrophotometer (spectrophotometry method) as a sensor to identify the toxic gas. Missions are measured during regular basis and informed to the user if above the permitted level and the failure of the sensor. If the user doesn’t take any action within a week the alert is passed to the server of the pollution monitoring center through Internet of Things (IoT). The center decides the fine amount and intimates the user.