Water quality assessment is the process of evaluating the physical, chemical, and biological characteristics of water to determine its suitability for various uses, such as drinking, recreation, and agriculture. This assessment helps identify pollutants and contaminants that may affect human health and the environment. The assessment typically involves collecting water samples from different sources, such as rivers, lakes, and groundwater. These samples are then analyzed for parameters like pH, dissolved oxygen, and nutrient levels. Regular monitoring ensures that water quality standards are met and helps in managing water resources effectively.