This research was conducted in Canada, buying more than 50 different brands of water, finding that 70% of bottled water brands contain high levels of bacteria. The researchers of the laboratory in Canada discovered that Crest tap water of any house contained less bacteria than the 70%.
Dr. Sonish Azam, a microbiologist at the lab, I argue that bottled water was not analyzed at the level of slogans with which it advertises, and found some bottles in quantities of one hundred times higher limit.
She needed to assure tighter controls on water bottling companies. When consumers expect the water is free of microorganisms, really the result of this study is very different. It is so bad that even the tap water contains less bacteria.
Azam also confirmed that it is unlikely that the bacteria found in bottled water cause any type of disease. "But high levels of bacteria in bottled water could pose a risk to vulnerable segments of population such as pregnant women, infants, immunocompromised patients and the elderly."