What is the best temperature range for storing water samples for microbiological analysis?

Storing water samples for microbiological analysis at temperatures between 0°C and 4°C is essential for preserving the integrity of the samples. This temperature range inhibits the growth of microorganisms and helps to prevent any changes in the microbial community composition that could occur if samples were stored at higher temperatures. By maintaining cooler temperatures, microbial activity is slowed, allowing for more accurate analysis of the original sample when it is eventually tested. This cooling process ensures that the biological characteristics of the sample reflect the conditions of the water source at the time of collection, leading to reliable results in microbiological assessments.