International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Apna PRAHARI: A smart portable AQI Monitoring and LPG Leakage Prevention System.

Author(s) Ms. Niva Chhonkar, Mr. Jap Malhotra, Ms. Vani Menon, Mr. Anil Kumar
Country India
Abstract Many people are unaware of the air they breathe every day, whether indoors, be it home, school,office or outdoors. This project focused on designing a device that can detect air pollution levels in real time, using different types of sensors. It helps people monitor harmful gases and particulate matter, and take steps to protect their health
This project aimed to design a Smart Air Quality Monitoring Device,which detects indoor AQI in real time,alerts users through mobile/PC,prevents fire damage by sensing LPG leakage and triggering alarm.The efficacy of indoor air purification using selected plants: Feather Palm, Money Plant, Chlorophytum (Spider Plant), Sansiviera (Snake Plant)
Various Air sensors for continuously monitoring the levels of pollutants like CO₂, NO₂, SO₂, PM and LPG were used with the Sensitivity range- MQ 7-20 ppm to 2000 ppm (parts per million),MQ 135 CAN DETECT Ammonia (NH₃),Nitrogen oxides (NOₓ), Alcohol, Benzene, Smoke, CO₂-10 ppm to 1000 ppm depending on the gas,For NH₃, around 5–500 ppm, For CO₂, around 200–1000 ppm.MQ-2-CAN DETECT LPG,Propane, Methane,Hydrogen,Smoke.Its Sensitivity Range:300 ppm to 10000 ppm depending on the gas.LPG detection approximately 200–10000 ppm
Keywords AQI, air pollution, indoor pollution, gas leakage, Air purifying plants, Portable device
Published In Volume 8, Issue 2, March-April 2026
Published On 2026-04-03
DOI https://doi.org/10.36948/ijfmr.2026.v08i02.72784
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