• Sayani Chandra
• Debraj Roy
• Rafiqul Islam
• Shirsankar Basu
• Sinthia Roy

Air pollution means the presence into the air of a substance which has harmful or poisonous effects. Traditionally, pollution measurements are performed using expensive equipment at fixed locations or dedicated mobile equipment laboratories. In this paper we introduce IOT Based Air Pollution Monitoring System in which we will monitor the fine-grained Air Quality in real-time over a web server using internet and will trigger an alarm when the air quality goes down beyond a certain level, means when there is sufficient amount of harmful gases are present in Sulpher-Die-Oxide, volume of CO2, detection of leakage of any gas -smoke, LPG, benzene and NH3. It will show the air quality in PPM on the LCD and as well as on webpage so that we can monitor it very easily. We have used MQ135 sensor which is the best choice for monitoring Air Quality as it can detect most harmful gases and can measure their amount accurately. In this IOT project, you can monitor the pollution level from anywhere using your computer or mobile. We can install this system anywhere and can also trigger some device when pollution goes beyond some level, like we can switch on the Exhaust fan or can send alert SMS/mail to the user.

MQ135 sensor, IOT, PPM, LCD, NH3, LPG

"A Novel Approach of Internet of Things: Microcontroller Based Air Pollution Monitoring System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 4, page no.310-312, April-2017, Available :http://www.jetir.org/papers/JETIR1704073.pdf

"A Novel Approach of Internet of Things: Microcontroller Based Air Pollution Monitoring System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 4, page no. pp310-312, April-2017, Available at : http://www.jetir.org/papers/JETIR1704073.pdf