Which strategy is effective for reducing lead exposure from drinking water?

Flushing taps before use is an effective strategy for reducing lead exposure from drinking water because it helps to remove any lead that may have leached into the water while sitting in lead-containing pipes. Water that has been stagnant in plumbing systems can absorb lead from the pipes, particularly if the water has remained in contact with the pipes for several hours or overnight. By flushing taps for a few minutes before using the water for drinking or cooking, users can ensure that they are using fresher water that has not been contaminated with lead. This simple action can significantly lower lead concentrations and enhance water safety.

The other strategies mentioned may not effectively address lead exposure. For example, using water from leaded pipes for cooking can exacerbate lead contamination rather than eliminate it. Drinking only bottled water may be a temporary solution, but it does not address the lead levels present in the tap water system. Finally, while some kitchen filters can reduce contaminants, not all are designed specifically to remove lead, making them a less reliable option without proper certification. Flushing remains a straightforward and practical first step in minimizing lead exposure.