期刊
JOURNAL OF ENVIRONMENTAL QUALITY
卷 48, 期 1, 页码 102-116出版社
WILEY
DOI: 10.2134/jeq2018.06.0228
关键词
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资金
- National Natural Science Foundation of China [41522108]
- National Key Science and Technology Project: Water Pollution Control and Treatment [2014ZX07101-012]
- Natural Science Foundation of Zhejiang Province [LR16B070001]
The analytical techniques and instrumentation used to assess agricultural and rural nonpoint-source organic pollution loading are usually complex and expensive. There has been a strong demand for alternative methodologies to determine the presence and composition of organic pollutants and to predict their levels. In the current work, we investigated a simple and inexpensive approach combining excitation-emission matrix and support vector machine that measures pollution and predicts the levels of precursors to disinfection by-products, which are organic pollutants derived from agricultural and rural nonpoint sources in small watersheds. Through parallel factor analysis, a four-component model was developed to explain the composition of dissolved organic matter in water impacted by nonpoint-source pollution. Support vector classification and support vector regression with model components can use fluorescence properties as proxy indicators for nonpoint-source pollution. When the model components are used as input variables, formation potential of disinfection by-products can be predicted. This method provides water utilities managers with tools to control pollution, supervise aquatic environments, and ensure the safety of drinking water.
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