Air Quality Monitoring System for Hazardous Gas Detection and Fire Risk in a Chemical Laboratory

Vergi Ramadhani; Syarifah Aini; Jimmie

doi:10.59934/jaiea.v5i2.2109

Authors

Vergi Ramadhani Universitas Muhammadiyah Palembang
Syarifah Universitas Muhammadiyah Palembang
Jimmie Universitas Muhammadiyah Palembang

DOI:

https://doi.org/10.59934/jaiea.v5i2.2109

Keywords:

Air quality monitoring, Chemical laboratory, Fire risk detection, Hazardous gas, Internet of Things

Abstract

Chemical laboratories require a safe and controlled environment due to the frequent use of hazardous and flammable substances that may pose serious health and fire risks. Inadequate air quality monitoring can increase the likelihood of gas exposure and uncontrolled fire incidents. This study focuses on the development of an air quality monitoring system for detecting hazardous gases and fire risk in a chemical laboratory. The proposed system is based on an Internet of Things approach using a NodeMCU ESP8266 microcontroller integrated with an MQ-135 gas sensor and a DHT11 temperature sensor. Environmental data are monitored in real time and displayed locally through an I2C LCD as well as remotely via the Blynk application. Experimental evaluation shows that the system is able to detect abnormal gas concentrations and temperature variations that indicate potential hazardous conditions. The results demonstrate that the proposed system can function as an effective early warning tool to support safety management and risk mitigation in chemical laboratory environments.

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