Which environmental factor indicates how clear the water is?

Prepare for the Certificate in Public Health Inspection exam. Utilize our flashcards and multiple-choice questions, each featuring hints and explanations. Ensure your success with our comprehensive resources!

Multiple Choice

Which environmental factor indicates how clear the water is?

Water clarity is indicated by turbidity, which measures how much suspended material or particles are in the water and thus how clouded it appears. A higher turbidity means cloudier water, while low turbidity means clearer water. Turbidity is commonly measured with a nephelometer and reported in NTU (nephelometric turbidity units). In drinking water, keeping turbidity very low is important because particles can harbor or shield microorganisms from disinfectants. The other factors—salinity (salt content), chlorine residual (disinfectant level), and pH (acidity/alkalinity)—do not directly reflect how clear the water is.

Water clarity is indicated by turbidity, which measures how much suspended material or particles are in the water and thus how clouded it appears. A higher turbidity means cloudier water, while low turbidity means clearer water. Turbidity is commonly measured with a nephelometer and reported in NTU (nephelometric turbidity units). In drinking water, keeping turbidity very low is important because particles can harbor or shield microorganisms from disinfectants. The other factors—salinity (salt content), chlorine residual (disinfectant level), and pH (acidity/alkalinity)—do not directly reflect how clear the water is.

More practice questions