While the health effects of plastic containers haven't been thoroughly studied yet, experts said the chemicals found in plastic may react with impurities in water, causing a toxic effect.
"Bacteria, algae, and sediments are the most noticeable pollutants and the leading source of consumer complaints about bottled water product quality. Monitoring the water source for contamination, keeping bottling equipment clean, and treating water are all technical tasks that can be beyond the capabilities of some bottling operations," according to Steve Coffel in "But Not A Drop to Drink! The Lifesaving Guide to Good Water."
How can consumers protect themselves from dangerous and dubious products? The following guidelines may help:
Be aware of the source of bottled water. Your best bet is a spring or other underground system in a non-industrial area which has less chances of acquiring pollutants. Avoid products made by companies that won't disclose their source.
Check the processing method. You'll have less trouble if filtration is done through activated carbon granules and ozonation.
Ask the manufacturer for results of recent bacterial tests and how often they are made. You might want to test the product yourself at a certified water testing center.
Don't let price be your guide. The most expensive brands are not necessarily safe, nor are imported products better than local brands.
Know the amount of minerals in the product and the level of carbonation. Too many minerals and heavy carbonation can be bad for your health.
Avoid companies that use scare tactics in selling their products. Also be on the lookout for misleading health claims made for bottled water. Remember that you're only buying water.
Check if the manufacturer is a member of the International Bottled Water Association (IBWA), the trade association of the bottled water industry based in Virginia. In addition to purification processes required by law, IBWA members are required to follow standards set by the US National Sanitation Foundation.
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