What unit is used to measure turbidity?

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Multiple Choice

What unit is used to measure turbidity?

Explanation:
Turbidity measures how cloudy water is because of suspended particles. The standard way to express that cloudiness is using Nephelometric Turbidity Units, or NTU, because the measurement comes from a nephelometer that shines light through the sample and detects how much light is scattered at a 90-degree angle. The more light that gets scattered, the higher the turbidity reading, so higher NTU means murkier water. This is different from mg/L, which is a mass concentration of dissolved substances, not cloudiness; pH, which indicates how acidic or basic the water is; and CFU/mL, which counts living microorganisms. In water treatment, NTU is the conventional unit for turbidity.

Turbidity measures how cloudy water is because of suspended particles. The standard way to express that cloudiness is using Nephelometric Turbidity Units, or NTU, because the measurement comes from a nephelometer that shines light through the sample and detects how much light is scattered at a 90-degree angle. The more light that gets scattered, the higher the turbidity reading, so higher NTU means murkier water. This is different from mg/L, which is a mass concentration of dissolved substances, not cloudiness; pH, which indicates how acidic or basic the water is; and CFU/mL, which counts living microorganisms. In water treatment, NTU is the conventional unit for turbidity.

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