Water quality can mean different things to different people and therefore depends on what standard of quality one is looking for, for example, water may be fine for fish to live in but lack the quality required for human consumption.
To measure the quality of water accurately, tests are carried out to identify several key indicators. These characteristics are then compared to numeric standards and guidelines in order to decide if the water is suitable for a particular purpose. The assessment of the quality of water can be divided into three categories; biological, chemical, and physical. (more…)