Development of Air Pollution Alert System: A Case Study of Particulate Matter 2.5 micron (PM2.5)

Abstract

This project tackles the rising problem of PM2.5 dust and its health effects.  Existing apps lack comprehensive and convenient alerts, so we built "app10."  It detects and alerts users about PM2.5 levels using data from the Open Weather API, displaying them on a map of Thailand and using color-coded alerts based on safety standards.

Testing showed app10's performance is comparable to popular apps like Check Dust, IQAir, and air4thai. It works seamlessly across multiple devices, providing consistent results.  Flutter local notifications alert users about three PM2.5 levels: Moderate (25.1–37.5), Poor (37.6–75), and Very Poor (75.1+). However, alerts only work while the app is open.

User satisfaction surveys revealed most users check the app once a day or more, with the Home Page being the most popular. The feature most appreciated was the alert for Moderate PM2.5 levels and above.  The app's design was rated as user-friendly and convenient.  Overall user satisfaction was rated "Good," showing strong potential for real-world use and future development.