Multi - Conditional Analysis of Indian Ambient Air Quality Using MQ - 135 Sensor

In the present times, air quality is a major concern in whole world. Major parts of the world irrespective of developing or developed nations are a victim to Air Pollution; it is one of the biggest problems. Air quality is of significant concern because of its negative effect on the health of the region?s living conditions, climate, and economy it is caused by harmful pollutants released from natural or man - made activities. [1] Such pollutants causing air Pollution are CO2, CO, SO2, NO2, O3, Suspended particulate Matter (SPM), Respirable particulate matter (RSPM), volatile organic compounds such as Alcohols, benzene, etc. and smoke. [2]. Therefore it is a bit challenging but necessary task to monitor air quality in real time looking towards the upcoming time. As a part of experiment monitoring of air Quality in real time using Arduino microcontroller unit with MQ - 135 air quality sensor is done. It measures NH3, NOx, alcohol, Benzene, smoke, CO2, etc. [3] which can be displayed in ppm And DHT11 humidity and temperature sensor which can be displayed in percentage and degree Celsius respectively and plotting of graphs showing variation in air quality with respect to time, temperature, humidity, different locations and seasonal variation in air quality. Also an alarm was connected with Arduino unit so that when air quality goes down and LCD shows value beyond certain permissible limit then alarm will start beeping to alert people about the severity of air. The benefits of sensor, having reliable stability, rapid response Recovery, having long life, affordable as cost and power consumption is minimum, Portable, light in weight, and user friendly. All the data?s have been shown so that a fair variation could be observed in the air quality.