Thursday, February 17, 2011

Bottle water vs tap water




Do you drink bottled water because you believe it to be safer and healthier than tap water?

In our efforts to make informed decisions and take responsibility for our own health and well-being, it makes sense to take a hard look at one of our most basic health needs -- safe drinking water.

While tap water is regulated by the Environmental Protection Agency and state and local governments, bottled water is the responsibility of the Food and Drug Administration, and according to the non-profit consumer organization, FoodandWaterWatch.org:

40 percent of bottled water originates from the tap, with added minerals or filtration.

Municipal water is not permitted to contain E. coli or fecal coliform bacteria. FDA rules for bottled water include no such prohibitions.

Municipal water from surface sources must be filtered and disinfected, or it must have strict pollution controls. There are no filtration or disinfection requirements for bottled water at the federal level. The only source-water protection, filtration or disinfection provisions for bottled water are delegated to the states.

Cities must have their water tested by government-certified labs. No certification requirement exists for bottlers.

Municipal tap water must be tested for coliform bacteria 100 or more times per month. Bottled water plants only have to test once a week.

In a June 9, 2009 report to Congress, the Government Accountability Office, stated:

FDA and state bottled water labeling requirements are similar to labeling requirements for other foods, but the information provided to consumers is less than what EPA requires of public water systems under the Safe Drinking Water Act. Like other foods, bottled water labels must list ingredients and nutritional information and are subject to the same prohibitions against misbranding.

In 2000, FDA concluded that it was feasible for the bottled water industry to provide the same types of information to consumers that public water systems must provide. The agency was not required to conduct rulemaking to require that manufacturers provide such information to consumers, however, and it has not done so.

Nevertheless, GAO’s work suggests that consumers may benefit from such additional information. For example, when GAO asked cognizant officials in a survey of the 50 states and the District of Columbia, whether their consumers had misconceptions about bottled water, many replied that consumers often believe that bottled water is safer or healthier than tap water. GAO found that information comparable to what public water systems are required to provide to consumers of tap water was available for only a small percentage of the 83 bottled water labels it reviewed, companies it contacted, or company Web sites it reviewed.

Above and beyond the health issue, bottled water comes at a much higher price than does tap water, both economically and environmentally. That’s two strikes against bottled water. So is it really safer than tap water?

The United States, bottled water costs between $0.25 and $2 per bottle while tap water costs less than US$0.01. In 1999, according to a NRDC study, U.S. consumers paid between 240 and 10,000 times more per unit volume for bottled water than for tap water.Typically 90 percent or more of the cost paid by bottled water consumers goes to things other than the water itself—bottling, packaging, shipping, marketing, retailing, other expenses, and profit.In some areas, tap water may contain added fluoride, which helps prevent tooth decay and cavities.The addition of fluoride is also seen by some to be a long-term health hazard.
Bottled water has reduced amounts of copper, lead, and other metal contaminants since it does not run through the plumbing pipes where tap water is exposed to metal corrosion. However, this varies by the household and plumbing system.In a study with 57 bottled water samples and tap water samples, all of the tap water samples had a bacterial content under 3 CFUs/mL and the bottled water samples' bacterial content ranged from 0.01-4900 CFUs/mL(colony-forming unit). Most of the water bottle samples were under 1 CFU/mL, though there were 15 water bottle samples containing 6-4900 CFUs/mL. In another study comparing 25 different bottled waters, most of the samples resulted exceeding the contaminant level set by the U.S. Environmental Protection Agency‎ (EPA) for mercury, thallium, and thorium. Being exposed to these contaminants in high concentration for long periods of time can cause liver and kidney damage, and increase risk for lung and pancreas disease.
In much of the developed world chlorine is often added as a disinfectant. If the water contains organic matter, this can produce other products in the water such as trihalomethanes and haloacetic acids resulting in off-smell or taste. The level of residual chlorine found at around 0.0002 g per litre which is too small to directly cause any health problems.The chlorine concentration recommended by World Health Organization is between 0.0005 and 0.0002 g/L.
The Natural Resources Defense Council, Sierra Club and World Wildlife Fund have all urged their supporters to consume less bottled water. Anti-bottled water campaigns and organizations, such as Corporate Accountability International, typically argue that bottled water is no better than tap water, and emphasize the environmental side-effects of disposable plastic bottles.
The Showtime series Penn & Teller: Bullshit! demonstrated, in a 2003 episode, that in a controlled setting, diners could not discern between bottled water and water from a garden hose behind the restaurant.
The United Church of Christ, United Church of Canada, National Council of Churches, National Coalition of American Nuns and Presbyterians for Restoring Creation are among some of the religious organizations that have raised questions about whether or not the "privatization" of water is ethical. They regard the industrial purchase and repackaging at a much higher resale price of a basic resource as an unethical trend.
The recent documentary Tapped argues against the bottled water industry, asserting that tap water is healthier, more environmentally sustainable and more ecologically just than bottled water. The film focuses on the bottled water industry in the United States. The film has largely seen positive reviews, and has spawned college campus groups such as Beyond the Bottle.
Bottled water service
Source: - wikipedia.org



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