What does NTU stand for in water quality measurement?

NTU stands for Nephelometric Turbidity Unit. This measurement is significant in water quality analysis as it quantifies the turbidity or cloudiness of water, which can indicate the presence of suspended solids, microorganisms, and various pollutants. Turbidity is an important parameter because it affects water quality, aquatic life, and the effectiveness of water treatment processes. The NTU value is determined using a nephelometer, which analyzes the amount of light scattered by particles in the water sample. A higher NTU reflects greater turbidity, signaling a need for further treatment to ensure safe and clean water for consumption and environmental health.