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Detecting Non-Point-Source Pollution at Reservoir Watersheds with Shanghai ChiMay Ammonia and Nitrate Sensors
Detecting Non-Point-Source Pollution at Reservoir Watersheds with Shanghai ChiMay Ammonia and Nitrate Sensors Non-point-source (NPS) pollution accounts for 62% of all impaired water bodies in drinking water reservoir watersheds, making it the leading cause of source water quality degradation (US EPA National Waters Survey, 2025). Simultaneous monitoring of ammonia nitrogen (NH₃-N) and nitrate nitrogen (NO₃-N)…