<![CDATA[The rapid increase in detergent waste due to urbanization poses significant environmental risks, particularly to water bodies. This study developed an IoT-based system to monitor detergent waste parameters—pH, temperature, and turbidity—using sensors integrated with an Arduino Mega 2560 microcontroller. The system ensures real-time data logging and visualization via a Blynk application, with thresholds set at pH 6–9, temperature <38°C, and turbidity <75 NTU, as per Indonesian environmental standards. Experimental results revealed that detergent waste samples exhibited pH levels of 4–5, temperatures of 27–28°C, and turbidity levels of 90–150 NTU, exceeding permissible limits. The system demonstrated high accuracy, with sensor errors below 1% for pH and temperature measurements. These findings underscore the need for advanced wastewater treatment processes and stricter regulatory enforcement. The IoT-based monitoring system proved effective for real-time environmental assessment, offering a scalable solution for urban wastewater management.]]>
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