Bottled water may not be any better than tap water.
It's true that bottled water may contain many different types of impurities that those who drink it do not expect. In fact, bottled watcher can be more impure than tap water. One reason for this is that every community in the U.S. must monitor their tap water.
Bottled water is not tested and monitored in the way that tap water is, and it does not need to meet minimum standards. Some companies that bottle water have recalled it over the years due to finding that it contained mold, bacteria, arsenic, and other ingredients.
Some bottled water is tap water with no changes made to it.
Some research shows that some bottled water is simply tap water that has not had any treatment at all. Even fluoride has shown up in some bottled water, and many people drink the bottled version to avoid this additive to community tap water systems. Sometimes, producers of bottled water state that the water “comes from a community water system,” so it is important to read water labels very carefully.
Water stored in plastic may have additional chemicals in it.
One research study found that chemicals called phthalates (DEHP) can seep into water stored in plastic bottles in about 10 weeks. Phthalates can disrupt hormones, such as testosterone, and can cause health problems that the person drinking has no idea are happening. According to a January, 2016 article published in the Chicago Tribune, Americans are still drinking plenty of bottled water despite the regular recalls that occur for E. coli and other impurities.
Americans spend around $4 billion annually on water in bottles. Although laws in some areas of the country are getting tougher on water bottlers, many must only post the name of the product, type of water, name and address of the manufacturer, packer or distributor and the net content on the bottle.
Source: Chicago Tribune, http://www.chicagotribune.com/lifestyles/health/sc-bottled-water-health-...