Researchers discovered that refillable jugs and everyday dispensers can contaminate drinking water, and only a small fraction of bottled samples met WHO safety guidelines.

Concerns have been expressed in Guatemala over the safety of bottled water compared with naturally occurring water sources.

In Guatemala’s Western Highlands, researchers found that the drinking water people trust most may actually be the riskiest.

A new study led by Washington State University researchers in Guatemala found that drinking water sources widely believed to be clean and safe often ...