What does sampling frequency refer to in water quality testing?

Sampling frequency in water quality testing refers to the rate at which water samples are collected and analyzed over a specific period. This is crucial for understanding how water quality changes over time, as it helps identify trends, detect contamination events, and ensure compliance with safety regulations. By determining the frequency of testing, environmental health specialists can effectively monitor water quality, identify potential issues early, and take necessary actions to protect public health.

The concept of sampling frequency emphasizes the importance of consistent and regular testing rather than focusing solely on contaminants, volume, or treatment duration, which are related but distinct aspects of water quality management.