# Taiwan Real-Time Air Quality Index (AQI) > Connects live to the Ministry of Environment's nationwide monitoring stations, providing the AQI and PM2.5/PM10 concentrations. Grading: 0-50 Good (green), 51-100 Moderate (yellow), 101-150 Unhealthy for Sensitive Groups (orange), 151-200 Unhealthy (red). ## Data Sources - [空氣品質指標 (AQI) 定義與活動防護指引](https://airtw.moenv.gov.tw): 環境部 (MOENV) - [細懸浮微粒 (PM2.5) 健康防護衛教手冊](https://www.hpa.gov.tw): 衛生福利部國民健康署 ## Related Pages - [Taiwan Real-Time UV Index](https://health.j172.tw/en/tools/uv) - [Taiwan & Global Significant Earthquake Tracker](https://health.j172.tw/en/tools/earthquakes) - [飲水量計算器](https://health.j172.tw/tools/water) - [室內空氣品質法公告場所查詢](https://health.j172.tw/tools/iaq-premises) - [空氣品質延伸監測資料查詢(AQX 系列)](https://health.j172.tw/tools/aqx-monitoring) ## Frequently Asked Questions (FAQ) - Q: How do I read the AQI value? A: AQI (Air Quality Index) values of 0-50 are Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and 151-200 Unhealthy for All Groups — the higher the number, the more severe the air pollution. - Q: Where does the data come from? A: Data comes from the Ministry of Environment's real-time air-quality observations at monitoring stations nationwide, automatically synced hourly.