Abstract:
Sianturi, Bryan Lexus Hasian, 2025. “Design of air quality monitoring system based with
Arduino on board”
Air quality in a ship's engine room plays a crucial role in ensuring the health and safety
of the crew, while maintaining the optimal performance of the machinery. This research
aims to design an Arduino Uno microcontroller-based air quality monitoring system that
is able to detect the presence of harmful gases in real-time. The system uses an MQ-135
sensor to monitor the concentration of gases such as carbon monoxide (CO), carbon
dioxide (CO₂), and other pollutant compounds. When gas levels exceed the threshold, a
buzzer will sound as a warning alarm, while an automatic DC fan helps circulate air. The
research method used is Research and Development (R&D) with the stages of needs
analysis, hardware and software design, laboratory trials, expert validation, and field
testing by users. The test results show that this system has a feasibility level of 85%
according to expert validators and a practicality level of 84.8% based on user responses,
so it is declared feasible and practical to use. The implementation of this monitoring
system is expected to help detect air pollution in the engine room more quickly and
accurately, as well as improve work safety and compliance with maritime safety
regulations.
