What method is used to measure turbidity in terms of light behavior?

Turbidity is measured primarily through the scattering of light. When a beam of light passes through a water sample, suspended particles cause the light to scatter in multiple directions. This scattering can be quantified to assess the degree of turbidity in the water. The greater the number of suspended particles, the more light is scattered, which directly correlates to higher turbidity levels.

This method effectively captures the impact of particles on light, making it a preferred technique for turbidity measurement in water treatment processes. Understanding this principle is crucial for operators, as monitoring turbidity helps ensure water quality and compliance with regulatory standards.