When treating water with chlorine in emergency situations, the chlorine dosage should be adjusted how when water is turbid or colored?

In emergency situations where water is both turbid and colored, it is crucial to adjust the chlorine dosage to ensure effective disinfection. Turbidity and color in water can interfere with the disinfection process, as suspended particles and coloring agents can shield pathogens from the chlorine, thereby reducing its efficacy.

Increasing the chlorine dosage—specifically doubling it—is recommended in these cases. By doing so, you compensate for the chlorine demand created by various contaminants in the water. This adjustment helps to ensure that a sufficient concentration of chlorine is available to provide effective sanitation and to reach a point where chlorine can adequately penetrate and neutralize any pathogens present.

This practice is grounded in the understanding that higher levels of chlorine are necessary to overcome the obstacles posed by turbid or colored water, allowing for effective treatment and making the water safer for use.