Due to rapid development of economy in Taiwan, industrialization and urbanization have brought great pressure on the environment. In particular, industrial pollution has immediate impact on residential areas because the small urban area increases the chances of pollution spreading. The conventional water sensing instruments, such as pH meter and conductivity measurement are reliable. However, frequent manual calibration and cleaning are usually required, thus the manpower demand for maintenance is heavy. Also, monitoring instruments for regulatory items related to enforcement, such as heavy metals and chemical oxygen demand have the disadvantages of large volume and high installation cost. Therefore, the conventional water sensing instruments are not suitable for application scenarios on mass installation and distribution. The project have achieved the following results: 1.Optimization 10 sets of free chlorine and turbidity sensors respectively and consisted with 30 automated fixed water quality monitoring system. 2. 30 sets of automated fixed water quality monitoring system have been installed before late August and have been operated continuously over 60 days to provide sensing data for screening of water quality abnormal events; 3. 9 innovated mobile, 200 mobile and 400 handheld sensing devices are provided for EPA and city joint projects; 4. Using Guishan Industrial Zone as a model, complete the water quality monitoring application as the smart industrial zone; 5. Establishing the IoT platform of water quality provides visualization, bigdata analysis and early warning functions. Also provides regular weekly reports to analyze, trasck and monitor water quality abnormalities in each area.

Environmental water quality, Pollution monitoring, Environmental forensic investigation, IoT, sensor network