近年來空污日益嚴重，空氣污染物進入體內會導致肺部病變，甚至致死。據統計，多數人一天中8至16小時都在同一室內地點，若長期所待地點可隨時監測並分析空品指標，便可即時作相應防護。我國雖有空品站監測空污，但都在定點監測室外數據，而本研究研製的空污監測儀可隨身攜帶，隨時監測身邊空污程度。主要偵測特定污染物數據，再用曲線圖分析數據趨勢。驗證數據則來自環保署資料庫。本模組以Ai·duino Uno開發，搭配GP2Y1014AUOF粉塵傳戚器、DHT22溫溼度模組及作MQ-7一氧化碳戴測器偵測空品，用DS1307時鐘模組記錄收集數據時間點，並以RGB LED模組為模組的運作指示及偵錯指標。研究結果顯示本模組之溫濕度與環保署數據具相近趨勢，而PM25與co因室內外情境大不同故差異較大。整體來說本模組具成本低的優勢，且數據有參考性。

Air pollution issue has been deteriorating. When pollutants enter the lung, they may cause pulmonary lesion, and even result in death. Most Taiwanese tend to stay around the same area for 8 to 16 hours in a day. Hence, if the air quality can be detected instantly, we can be aware of hazard air quality in advance, and take actions regarding to the air condition. However, the air quality indexes are often detected by stationary device by national monitoring station. The portable air quality sensing module developed in this research is to meet the niche. The module consists of DHT22 module monitoring humidity and temperature, GP2Y1014AUOF particulate matter sensor, and MQ-7 carbon monoxide sensor, with Arduino Uno. RGB LED module is added to present the module condition. The data retrieved are analyzed and validated. Validation data was from National Environmental Protection Association database. The results showed that temperature and humidity have trends similar to the EP A's air quality data, while PM2.s and CO are different because of the indoor and outdoor difference. Overall, the self-developed equipment has lower cost and nice performance.