Water Quality Monitoring Station Through Nitrate Measuring with IoT

Anthropogenic activities such as agriculture and livestock farming alter the chemical balance of the soils and water bodies contaminating them with different compounds such as nitrates. This contamination presents a risk to the environment and human health, therefore becomes important to understand the factors affecting water quality. In this work, a station is developed to monitor water quality by measuring nitrates using the spectroscopy technique. The designed station automates the measurement process from extracting a sample from a body of water for data collection. The system has IoT capability that uploads data to a remote access platform for continuous monitoring of chemical changes. The results were obtained using a set of seven standards with different nitrate concentrations to validate and analyze the reliability of the system. The station was validated with all sensors, actuators and control elements working together.