Which of the following are acceptable bromine levels in a pool?

The acceptable bromine levels in a swimming pool are typically within the range of 3.0 to 5.0 parts per million (ppm). This range is effective for maintaining water sanitation while being safe for bathers. The ideal bromine level for most pools is around 3.0 to 5.0 ppm as it ensures sufficient disinfection without causing irritation or negative effects on the pool environment.

Choice B suggests a range of 2.0 to 10.0 ppm, which contains the ideal level but also exceeds it. While bromine can be effective at higher concentrations, levels significantly above 5.0 ppm can lead to discomfort for swimmers and potential chemical imbalances in the water. Therefore, while on the low end it offers some acceptable conditions, the upper limit becomes less favorable as it is not widely recommended for regular swimming conditions.

Understanding these ranges is crucial for a pool operator to ensure the safety and comfort of swimmers while maintaining effective disinfection practices.