ATmega328 MC Based Air Pollution Monitoring System

With increasing urbanization, air pollution monitoring is emerging as one of the global challenges of critical importance, as air contamination leads to multitude of adverse effects on environment, ecosystem and human health. Air pollution poses a health hazard and causes millions of deaths all over the world, every year. Air pollution monitoring is represented by a standard parameter known as Air Quality Index (AQI). The major limitation of the air pollution monitoring is that there are limited number of pollution monitoring stations. Any gas can be termed as a pollutant when it reaches high enough concentration to harm the living beings, flora and fauna on earth. The present work proposes to monitor air pollution due to major pollutants such as CO2, NO2, CO, dust, methane and propane on a continuous basis. The sensors which are electrochemical are used for monitoring air pollutants, with the sensors interfaced to the ATmega 328MC controller based Arduino Uno board. Arduino IDE and LabVIEW are used as a software toolkit for coding. Theconcentration of pollutants in PPM (Parts per Million) are displayed on LCD. This helps in disseminating awareness about air quality to general public to enable them to take necessary preventive and curative measures for their well-being.