“…As in Figure 1, after collecting water quality, the UV appearance was standardised using water quality data from the spectra to understand the water quality collection, thus enabling the transfer of early warning models, reducing the resources required to calibrate equipment and improving the use of models, resulting in a standardised UV-Vis spectral water quality database for spectral standard instruments [15]. Due to the standardised UV levels of different rivers, various indicators and algorithmic models were selected during data collection, so that a DT algorithm can be used to extract UV-Vis spectral water quality data features, in order to learn and model the spectral information used to extract spectral water quality data features, apply the classification of spectral information to study the quality of water spectral information, and analyse water quality through a decision algorithm classification [16]; using the water quality analysis model, based on the advantages of electronic information technology, and take full advantage of its efficient computing power and its portability, to achieve the processing of water quality data, and by setting up a water pollution early warning system environment, can real-time display of water quality, so as to achieve water pollution early warning [17][18].…”