Melola Discovery

← Melola Discovery

Journal

Design and Development of IoT-Based Alcohol, CO₂, H₂S, and PM2.5 Detection System for Air Quality Monitoring in Chemical Laboratories

Indonesian Journal of Chemical Science · Vol. 15 No. 1 (2026) · pp. 1–8

DOI
10.15294/ijcs.v15i1.31224
ISSN
2502-6844, 2252-6951
Published
2026-05-26
Publisher
Prodi Kimia
Language
eng

Abstract

Air quality in a chemical laboratory is a crucial factor for occupational safety due to potential exposure to hazardous compounds such as alcohol vapor, CO₂, H₂S, and PM2.5 particles. This research aims to design, build, and test an Internet of Things (IoT)-based air quality detection system capable of monitoring these pollutants in real-time. The research method involved designing a system using MQ-3, MQ-135, MQ-136, and GP2Y1010AUF sensors integrated with a NodeMCU ESP32 microcontroller. Sensor calibration was performed using experimental methods to ensure the device's accuracy. The calibration results showed high validity with coefficients of determination (R²) for the MQ-3, MQ-135, and MQ-136 sensors of 0.9873, 0.9871, and 0.9127, respectively. The average measurement error of the system was below 5%. The system proved effective in providing early warnings and can be applied to enhance occupational safety and health in chemical laboratories through continuous and responsive air quality monitoring.

Keywords

Collaboration network of the authors

40 authors · 126 co-authorship links · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Universitas Halu Oleo
  • State University of Semarang
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Muhammad Syukri SadimantaraUniversitas Halu Oleo15
SRI REJEKIUniversitas Halu Oleo15
Andi KhaeruniUniversitas Halu Oleo10
RH Fitri FaradillaAffiliation unknown10
Ansharullah AnsharullahUniversitas Halu Oleo10
Hermanto HermantoAffiliation unknown8
Nur AsyikUniversitas Halu Oleo6
Asnani AsnaniAffiliation unknown6
Tamrin TamrinAffiliation unknown5
Sri KadarwatiState University of Semarang5
La KarimunaAffiliation unknown4
Rudi HartonoAffiliation unknown4
Sigit PriatmokoState University of Semarang4
Sarinah SarinahAffiliation unknown3
Prima Endang SusilowatiAffiliation unknown3
Subiyanto Hadi SaputroAffiliation unknown3
Jumaeri JumaeriAffiliation unknown3
Zuraidah ZuraidahAffiliation unknown3
Thamrin AzisAffiliation unknown2
Mashuni MashuniAffiliation unknown2
Muhammad Zakir MuzakkarAffiliation unknown2
Abdu Rahman BacoAffiliation unknown2
Kobajashi Togo IsamuAffiliation unknown2
Zulfa SakhiyyaAffiliation unknown2
Januarius MujiyantoAffiliation unknown2
Rahayu Puji HaryantiAffiliation unknown2
Yuni Dwi SusantiAffiliation unknown2
Abdurrachman FaridiAffiliation unknown2
F. ‪Widhi MahatmantiAffiliation unknown2
Harjito HarjitoAffiliation unknown2
Agung Tri PrasetyaState University of Semarang2
Sri Wuli FitriatiAffiliation unknown2
Muh Fakhrihun Na'amAffiliation unknown2
Sri Endah WahyuningsihAffiliation unknown2
Muliana MulianaAffiliation unknown2
Safrika SafrikaAffiliation unknown1
Bagio BagioAffiliation unknown1
Rezqi MaliaAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/ijcs/oai, first harvested 5 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">Design and Development of IoT-Based Alcohol, CO₂, H₂S, and PM2.5 Detection System for Air Quality Monitoring in Chemical Laboratories</dc:title>
	<dc:creator xml:lang="en">Quthbil Irsyad, Muhammad</dc:creator>
	<dc:creator xml:lang="en">Wahyuni, Sri</dc:creator>
	<dc:subject xml:lang="en">IoT</dc:subject>
	<dc:subject xml:lang="en">Kualitas Udara</dc:subject>
	<dc:subject xml:lang="en">Sensor Gas</dc:subject>
	<dc:subject xml:lang="en">PM2.5</dc:subject>
	<dc:subject xml:lang="en">Laboratorium Kimia</dc:subject>
	<dc:description xml:lang="en">Air quality in a chemical laboratory is a crucial factor for occupational safety due to potential exposure to hazardous compounds such as alcohol vapor, CO₂, H₂S, and PM2.5 particles. This research aims to design, build, and test an Internet of Things (IoT)-based air quality detection system capable of monitoring these pollutants in real-time. The research method involved designing a system using MQ-3, MQ-135, MQ-136, and GP2Y1010AUF sensors integrated with a NodeMCU ESP32 microcontroller. Sensor calibration was performed using experimental methods to ensure the device's accuracy. The calibration results showed high validity with coefficients of determination (R²) for the MQ-3, MQ-135, and MQ-136 sensors of 0.9873, 0.9871, and 0.9127, respectively. The average measurement error of the system was below 5%. The system proved effective in providing early warnings and can be applied to enhance occupational safety and health in chemical laboratories through continuous and responsive air quality monitoring.</dc:description>
	<dc:publisher xml:lang="en">Prodi Kimia</dc:publisher>
	<dc:date>2026-05-26</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/ijcs/article/view/31224</dc:identifier>
	<dc:identifier>10.15294/ijcs.v15i1.31224</dc:identifier>
	<dc:source xml:lang="en">Indonesian Journal of Chemical Science; Vol. 15 No. 1 (2026): Indonesian Journal of Chemical Science; 1-8</dc:source>
	<dc:source>2502-6844</dc:source>
	<dc:source>2252-6951</dc:source>
	<dc:source>10.15294/ijcs.v15i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/ijcs/article/view/31224/9869</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 Indonesian Journal of Chemical Science</dc:rights>
</oai_dc:dc>