
Facts About Water
By Water.org
780 million people lack access to an improved water source; approximately one in nine people.
3.41 million people die each year from water, sanitation and hygiene-related causes each year.
The water and sanitation crisis claims more lives through disease than any war claims through guns.
People living informal settlements (i.e. slums) often pay 5-10 times more per liter of water than wealthy people living in the same city.
An American taking a five-minute shower uses more water than the average person in a developing country slum uses for an entire day.
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References
United Nations Development Programme (UNDP). (2006). Human Development Report 2006, Beyond Scarcity: Power, poverty and the global water crisis.
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United Nations Development Programme (UNDP). (2006). Human Development Report 2006, Beyond Scarcity: Power, poverty and the global water crisis.
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United Nations World Water Development Report. (2009). Water in a Changing World.
WHO/UNICEF Joint Monitoring Programme (JMP) for Water Supply and Sanitation. (2010). Progress on Sanitation and Drinking-Water, 2010 Update.
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WHO/UNICEF Joint Monitoring Programme (JMP) for Water Supply and Sanitation. (2012). Progress on Sanitation and Drinking-Water, 2012 Update.
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Water and Sanitation Program (WSP). (2000). Linking Sustainability with Demand, Gender and Poverty: A study in community-managed water supply projects in 15 countries.
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UN Water. (2008). Tackling a Global Crisis: International Year of Sanitation 2008
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World Health Organization. (2008). Safer Water, Better Health: Costs, benefits, and sustainability of interventions to protect and promote health.
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World Health Organization (WHO). (2002). The World Health Report 2002, Reducing Risks, Promoting Healthy Life.
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Estimated with data from The United Nations Children’s Fund (UNICEF)/World Health Organization (WHO). (2009). Diarrhoea: Why children are still dying and what can be done.
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World Health Organization. (2004). “Evaluation of the costs and Benefits of Water and Sanitation Improvements at the Global Level”
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Water and Sanitation Program (WSP). (2010). Financing On-Site Sanitation for the Poor, A Six County Comparative Review and Analysis.
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Interesting and Useful Water Facts
By All About Water. org
Roughly 70 percent of an adult’s body is made up of water.
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At birth, water accounts for approximately 80 percent of an infant’s body weight.
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A healthy person can drink about three gallons (48 cups) of water per day.
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Drinking too much water too quickly can lead to water intoxication. Water intoxication occurs when water dilutes the sodium level in the bloodstream and causes an imbalance of water in the brain.
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Water intoxication is most likely to occur during periods of intense athletic performance
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While the daily recommended amount of water is eight cups per day, not all of this water must be consumed in the liquid form. Nearly every food or drink item provides some water to the body.
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Soft drinks, coffee, and tea, while made up almost entirely of water, also contain caffeine. Caffeine can act as a mild diuretic, preventing water from traveling to necessary locations in the body.
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Pure water (solely hydrogen and oxygen atoms) has a neutral
pH of 7, which is neither acidic nor basic.
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Water dissolves more substances than any other liquid. Wherever it travels, water carries chemicals, minerals, and nutrients with it.
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Somewhere between 70 and 75 percent of the earth’s surface is covered with water.
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Much more fresh water is stored under the ground in aquifers than on the earth’s surface.
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The earth is a closed system, similar to a terrarium, meaning that it rarely loses or gains extra matter. The same water that existed on the earth millions of years ago is still present today.
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The total amount of water on the earth is about 326 million cubic miles of water.
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Of all the water on the earth, humans can used only about three tenths of a percent of this water. Such usable water is found in groundwater aquifers, rivers, and freshwater lakes.
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The United States uses about 346,000 million gallons of fresh water every day.
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The United States uses nearly 80 percent of its water for irrigation and thermoelectric power.
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The average person in the United States uses anywhere from 80-100 gallons of water per day. Flushing the toilet actually takes up the largest amount of this water.
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Approximately 85 percent of U.S. residents receive their water from public water facilities. The remaining 15 percent supply their own water from private wells or other sources.
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By the time a person feels thirsty, his or her body has lost over 1 percent of its total water amount.
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The weight a person loses directly after intense physical activity is weight from water, not fat.
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Reverse Osmosis
Reverse osmosis was developed as a water treatment method more than 40 years ago. The process first arose as a technique of desalinating seawater. Once the method’s decontaminating capabilities were recognized, reverse osmosis systems began to be commercially produced for home water purification purposes. Such systems were installed in homes as early as the 1970s. Reverse osmosis systems seemed a viable option to the more costly and energy-wasteful distillation units.
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The Process:
The reverse osmosis process depends upon a semi-permeable membrane through which pressurized water is forced. Reverse osmosis, simply stated, is the opposite of the natural osmosis process of water. Osmosis is the name for the tendency of water to migrate from a weaker saline solution to a stronger saline solution, gradually equalizing the saline composition of each solution when a semi-permeable membrane separates the two solutions. In reverse osmosis, water is forced to move from a stronger saline solution to a weaker solution, again through a semi-permeable membrane. Because molecules of salt are physically larger than water molecules, the membrane blocks the passage of salt particles. The end result is desalinated water on one side of the membrane and a highly concentrated, saline solution of water on the other side. In addition to salt particles, this process will remove a select number of drinking water contaminants, depending upon the physical size of the contaminants. For this reason, reverse osmosis has been touted as an effective drinking water purification method.
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Pros and Cons:
Reverse osmosis is a valuable water purification process when mineral-free water is the desired end product. Most mineral constituents of water are physically larger than water molecules. Thus, they are trapped by the semi-permeable membrane and removed from drinking water when filtered through a reverse osmosis system. Such minerals include salt, lead, manganese, iron, and calcium. Reverse osmosis will also remove some chemical components of drinking water, including the dangerous municipal additive fluoride.
Although reverse osmosis does extract several contaminants from drinking water, its removal capabilities are not ideally suited to the challenges of the municipally treated water that the overwhelming majority of people receive. Municipal water contains such contaminants as chlorine and volatile organic chemicals (VOCs). Because these contaminants are physically smaller in size than water, the semi-permeable membrane cannot prohibit them from passing through with the water. Thus, they remain in drinking water.
Reverse osmosis, also, by removing alkaline mineral constituents of water, produces acidic water. Acidic water can be dangerous to the body system, causing calcium and other essential minerals to be stripped from bones and teeth in order to neutralize its acidity. Trace elements of minerals were intended to be in water; their removal leaves tasteless, unhealthy drinking water.
Reverse osmosis, although it is less wasteful than distillation, is still an incredibly inefficient process. On average, the reverse osmosis process wastes three gallons of water for every one gallon of purified water it produces.
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Distillation
The process of distillation has been known and used for millennia. Although it has primarily been employed as a method of producing alcoholic beverages like whisky and vodka, distillation also works as a technique of water purification. In the 1970s, distillation was a popular method of home water purification, but its use is now largely confined to science laboratories or printing industries.
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The Process:
The distillation process utilizes a heat source to vaporize water. The object of distillation is to separate pure water molecules from contaminants with a higher boiling point than water. In the distillation process, water is first heated until it reaches its boiling point and begins to evaporate. The temperature is then kept at a constant. The stable temperature ensures continued water vaporization, but prohibits drinking water contaminants with a higher boiling point from evaporating. Next, the evaporated water is captured and guided through a system of tubes to another container. Finally, removed from the heat source, the steam condenses back into its original liquid form. Contaminants having a higher boiling point than water remain in the original container. This process removes most minerals, most bacteria and viruses, and any chemicals that have a higher boiling point than water from drinking water. For this reason, distillation is sometimes valued as a method of obtaining pure drinking water.
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Pros and Cons:
Distillation, similarly to reverse osmosis, provides mineral-free water to be used in science laboratories or for printing purposes, as both functions require mineral-free water. It removes heavy metal materials like lead, arsenic, and mercury from water and hardening agents like calcium and phosphorous. Distillation is often used as the preferred water purification method in developing nations, or areas where the risk of waterborne disease is high, due to its unique capabilities to remove bacteria and viruses from drinking water.
Distillation has several qualities that make it undesirable for the purification of municipally treated water, especially when compared to the decontamination capacities of water filters. Although distillation processes remove mineral and bacterial drinking water contaminants, they do not remove chlorine, chlorine byproducts, or VOCs. These chemicals, which have a lower boiling point than water, are the major contaminants of municipally treated water. Most dangerous metals and bacteria are removed from water prior to its arrival at a home’s plumbing system. Thus, a distillation system, targeted at the removal of these contaminants, is unnecessary and irrelevant for most people.
Distillation, like reverse osmosis, provides mineral-free water that can be quite dangerous to the body’s system when ingested, due to its acidity. Acidic drinking water strips bones and teeth of valuable and essential mineral constituents.
Furthermore, distillation is an incredibly wasteful process. Typically, 80% of the water is discarded with the contaminants, leaving only one gallon of purified water for every five gallons treated
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Filtration
Water filters have a long history as a method of water purification, beginning as early as 2000 b.c.e. in ancient Egypt. Filtration has evolved from the simple
Hippocratic sleeve of ancient Greece, made from cloth, to the complicated solid block carbon and multimedia water filters currently on the market. Water filtration is now the premier method of water purification, removing more water contaminants, more efficiently, than any other technique.
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The Process:
The filtration process involves some type of filter media, over which water flows. This filter media blocks passage of contaminants through physical obstruction, chemical
adsorption, or a combination of both processes. Material construction of the filter media varies widely, but the most effective medias are made from carbon or a combination of carbon with other elements. Modern filtration technology allows water filters to remove more and more contaminants through the chemical process of adsorption. In the adsorption process, contaminants are encouraged to break their bond with water molecules and chemically adhere to the filter media. Generally, water goes through several stages of filtration to ensure that each filter media will remove the ultimate number of contaminants. Water normally passes through a water filter at a relatively low speed, in order to ensure adequate contact time with the filter media. Once the water has passed through the required stages of filtration, it emerges as pure drinking water, free from contamination.
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Pros and Cons:
Unlike reverse osmosis and distillation process, water filters are not limited in the type or size of contaminants they can remove. Thus, water filters are able to remove far more contaminants than any other purification method. Also, because they use the chemical adsorption process, water filters can selectively retain healthy trace minerals in drinking water.
Filtration is the only one of the three water purification methods that is capable of removing chlorine, chlorine byproducts, and VOCs from drinking water. Chlorine and VOCs are the most dangerous and threatening contaminants of municipally treated drinking water. Besides the removal of these dangerous chemicals, water filters also extract from drinking water the chlorine-resistant protozoa giardia andcryptosporidium. These protozoa have plagued the water treatment industry for several decades and have caused a number of epidemics of severe gastrointestinal disease, contracted through drinking contaminated water.
Water filters, because they do not require the costly energy sources of reverse osmosis and distillation, provide a source of relatively inexpensive, purified water. Also, water filters waste very little water, as compared to reverse osmosis and distillation systems.
Depending upon the type of filter used, water filtration may be a less than ideal form of water purification. For example, granular filters do not utilize the chemical adsorption process, allowing several contaminants to pass through the filter media. Likewise, rapid water filters allot water inadequate contact time with the filter media, limiting the number of contaminants that may be removed. Solid block carbon filters solve both of these problems by using both adsorptive and slow filtration processes. Solid block carbon filters are absolutely the best and most effective water filters available.
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The Truth about Bottled Water – Is it really better than tap water?
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Water has always been essential to our body’s system and our survival, but lately, it has become one of the most recent fitness crazes as people all over the world seek to gain the certified health benefits of drinking adequate amounts of water. Although people used to rely largely upon tap water to fulfill their daily quota of drinking water, in the last two decades, consumers have begun to shy away from this water source, due to such public health scares as the 1993 Milwaukee
cryptosporidium outbreak that infected more than 400,000 city residents. Bottled water companies, promising a purer, healthier water product than tap water, have expanded greatly in order to supply growing demands for quality drinking water.
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In the year 2003, Americans alone spent more than $7 billion on bottled water at an average cost of more than $1 a bottle.
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Clearly, the bottled water industry is here to stay, but is the price of bottled water really worth it? Do consumers truly receive a better water product for their money? This article will seek to answer these questions by exposing some little-known truths about bottled water.
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Natural Spring Water or Reconstituted Tap Water?
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Recent allegations against the Coca-Cola Company and its brand name of bottled water, Dasani, have publicly highlighted one of the biggest misconceptions about the quality of bottled water. Coca-Cola, advertising its bottled water as “pure, still water,” is now being investigated for misleading consumers about the true nature of the contents of its bottles. Rather than deriving its water from natural springs, Coca-Cola had actually been filling its Dasani bottles with purified tap water.Of course, this problem of reconstituted tap water in Dasani bottles would not be so large if it was an isolated incident. Unfortunately, the process of bottling tap water is not limited to the Coca-Cola Company. In 1999, the National Resources Defense Council (
NRDC) published the results of a four-year study in which researchers tested more than 1,000 samples of 103 brands of bottled water. These researchers found that,
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“An estimated 25 percent or more of bottled water is really just tap water in a bottle—sometimes further treated, sometimes not.”
In one case, a brand of bottled water, advertised as “pure, glacier water,” was found to be taken from a municipal water supply while another brand, flaunted as “spring water,” was pumped from a water source next to a hazardous waste dumping site. While “purified tap water” is arguably safer and purer than untreated tap water (depending upon the purification methods), a consumer should expect to receive something more than reconstituted tap water for the exceptional prices of bottled water.
If bottled water does not necessarily offer purer water than tap water, surely it provides a better tasting water product, right? The answer to this question is no. Bottled water does not always taste better than tap water.
In an interesting study conducted by Showtime television, the hosts found that 75% of tested New York City residents actually preferred tap water over bottled water in a blind taste test.
While taste is certainly highly subjective, this study shows that bottled water essentially holds nothing over tap water. In many cases, bottled water is no purer than tap water, and it may not even taste better.
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Standards and Regulations for Bottled Water
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Bottled water, because it is defined as a “food” under federal regulations, is under the authority of the Food and Drug Administration (
FDA) while the Environmental Protection Agency (
EPA)—under much stricter standards—regulates tap water. Thus, bottled water, depending upon the brand, may actually be less clean and safe than tap water. The EPA mandates that local water treatment plants provide city residents with a detailed account of tap water’s source and the results of any testing, including contaminant level violations. Bottled water companies are under no such directives.
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Also, while municipal water systems must test for harmful microbiological content in water several times a day, bottled water companies are required to test for these microbes only once a week.
Similarly, public water systems are required to test for chemical water contaminants four times as often as bottled water companies. In addition, loopholes in the FDA’s testing policy do not require the same standards for water that is bottled and sold in the same state, meaning that a significant number of bottles have undergone almost no regulation or testing.
Even under the more lax standards of the FDA, bottled water companies do not always comply with standardized contaminant levels.
Alarmingly, the 1999 NRDC study found that 18 of the 103 bottled water brands tested contained, in at least one sample, “more bacteria than allowed under microbiological-purity guidelines.”
Also, about one fifth of the brands tested positive for the presence of synthetic chemicals, such as industrial chemicals and chemicals used in manufacturing plastic like phthalate, a harmful chemical that leaches into bottled water from its plastic container. In addition, bottled water companies are not required to test for cryptosporidium, the chlorine-resistant protozoan that infected more than 400,000 Milwaukee residents in 1993. Bottled water companies, because they are not under the same accountability standards as municipal water systems, may provide a significantly lower quality of water than the water one typically receives from the tap.
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The Effects of Bottled Water on the Environment
It is hard to argue the fact that waste management has become a large problem in the world, with landfills growing to enormous sizes and recycling rates remaining dismally low. The number of plastic bottles produced by the bottled water industry and subsequently discarded by consumers has only exacerbated this problem.
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According to a 2001 report of the World Wide Fund for Nature (WWF), roughly 1.5 million tons of plastic are expended in the bottling of 89 billion liters of water each year.
Besides the sheer number of plastic bottles produced each year, the energy required to manufacture and transport these bottles to market severely drains limited fossil fuels. Bottled water companies, due to their unregulated use of valuable resources and their production of billions of plastic bottles have presented a significant strain on the environment.
The authors of the WWF report suggested that water bottles be washed and reused in order to lessen their negative impact on the environment. Unfortunately, reusing plastic bottles further compromises the quality of the water, due to the fact that more and more phthalate leaches its way into the water as the bottle gets older. In another suggestion, the authors recommended that bottled water companies use local bottling facilities in order to lessen fuel expenditures for transportation needs. Regrettably, local bottling further compromises water quality due to the reduced health standards for in-state bottled water production and consumption. It seems there is no feasible solution to this problem. The bottled water industry causes a severe strain on the environment, but solutions to this environmental damage significantly lessen the quality of water in the bottles.
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Why Choose Filtered Water?
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Bottled water, due to several factors, is clearly not a healthier or purer alternative to tap water. Also, bottled water is outrageously expensive when compared to the cost per gallon of tap water. If one is choosing only between tap water and bottled water, tap water is plainly the more economical, and, in many cases, the healthier choice. Despite this assertion, tap water does not remain without its problems.
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The concerns over the quality and safety of tap water that sparked the growth of the bottled water industry are still entirely present.
Tap water is nowhere near free from dangerous contaminants.
The most recent and innovative solution to the problems of low water quality has come about in the age of water filters.
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Water filters currently provide the best and healthiest solution to the problems of both bottled water and tap water.
Water filters remove more dangerous contaminants than any other purification method, and they are uniquely designed to work with municipally treated water. The water they produce is not subject to phthalate contamination, and they are able to remove cryptosporidium from drinking water, a feat that neither municipal water treatment plants nor bottled water companies have yet managed. Also, drinking filtered water is a much more economical practice than drinking bottled water. The pure water product of a water filter costs very little more than untreated tap water. Furthermore, because water filters use no more energy than is already required to propel water through a home’s plumbing system, they circumvent several of the environmental problems of the bottled water industry.
At this point in time, there is simply no better choice-for purity and economy-than filtered water.
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Reasons to Drink Water
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Water is absolutely essential to the human body’s survival. A person can live for about a month without food, but only about a week without water.
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Water helps to maintain healthy body weight by increasing metabolism and regulating appetite.
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Water leads to increased energy levels. The most common cause of daytime fatigue is actually mild dehydration.
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Drinking adequate amounts of water can decrease the risk of certain types of cancers, including colon cancer, bladder cancer, and breast cancer.
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For a majority of sufferers, drinking water can significantly reduce joint and/or back pain.
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Water leads to overall greater health by flushing out wastes and bacteria that can cause disease.
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Water can prevent and alleviate headaches.
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Water naturally moisturizes skin and ensures proper cellular formation underneath layers of skin to give it a healthy, glowing appearance.
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Water aids in the digestion process and prevents constipation.
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Water is the primary mode of transportation for all nutrients in the body and is essential for proper circulation.
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Reasons to Use a Water Filter
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In order to capitalize on the health benefits of water, it is essential to draw from a clean source of water.
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Drinking impure, contaminated water is the leading cause of epidemic disease in developing countries.
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There are more than 2100 known drinking water contaminants that may be present in tap water, including several known poisons.
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Bottled water does not offer a viable alternative to tap water.
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Municipal water treatment facilities cannot always control for the outbreak of dangerous bacterial contaminants in tap water.
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The only way to ensure pure, contaminant-free drinking water is through the use of a point-of-use filtration system.
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Several types of cancer can be attributed to the presence of toxic materials in drinking water.
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Clean, healthy drinking water is essential to a child’s proper mental and physical development.
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According to the EPA, lead in drinking water contributes to 480,000 cases of learning disorders in children each year in the United States alone.
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It is especially important for pregnant women to drink pure water as lead in drinking water can cause severe birth defects.
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Benefits of Using a Water Filter
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Water filters provide better tasting and better smelling drinking water by removing chlorine and bacterial contaminants.
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Point-of-use water filters remove lead from drinking water immediately prior to consumption, thus preventing this harmful substance from entering the body.
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The purchase of a countertop filter results in a source of clean, healthy water that costs much less than bottled water.
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Water filters greatly reduce the risk of rectal cancer, colon cancer, and bladder cancer by removing chlorine and chlorine byproducts from drinking water.
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A solid block carbon water filter can selectively remove dangerous contaminants from drinking water while retaining healthy mineral deposits that balance the
pH of drinking water.
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Drinking clean, filtered water protects the body from disease and leads to overall greater health.
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A water filter provides clean, healthy water for cooking, as well as drinking, at the convenience of tap water.
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Water filters reduce the risk of gastrointestinal disease by more than 33 percent by removing
cryptosporidium and
giardia from drinking water.
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Drinking pure water is especially important for children. Water filters provide the healthiest water for children’s developing immune systems.
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Water filters offer the last line of defense between the body and the over 2100 known toxins that may be present in drinking water.
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Reasons to Use a Shower Filter
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The
EPA has stated that every household in the United States has elevated levels of chloroform in the air due to chlorine released from showering water.
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Tap water often contains at least as much, if not more, chlorine than is recommended for use in swimming pools.
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More chlorine enters the body through dermal absorption and inhalation while showering than through drinking tap water.
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The chlorine in showering water has harsh, drying effects on skin and hair.
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Skin pores widen while showering, making dermal absorption of chlorine and other chemicals possible.
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The chlorine in showering water can cause rashes and other skin irritations when absorbed by the skin.
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Chemicals in showering water vaporize at a much faster rate than the actual water. Thus, the steam in a shower contains a much higher concentration of chemicals than the water itself.
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Inhaled chemicals make their way into the bloodstream much more quickly than ingested chemicals, without the added filtration benefits of digestion.
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More water contaminants are released into the air of a home from the shower than from any other source.
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Chlorine is a suspected cause of breast cancer. Women suffering from breast cancer are all found to have 50-60 percent more chlorine in their breast tissue than healthy women.
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Benefits of Using a Shower Filter
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Using a
shower filter is one of the easiest and most effective ways to reduce harmful exposure to chlorine and other chemicals.
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Showering in filtered water results in greater respiratory health by reducing the risk of asthma and bronchitis from chlorine inhalation.
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Showering in chlorine-free, filtered water decreases the risks of bladder and breast cancer.
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Children, who are particularly at risk of the harmful effects of chlorine inhalation, benefit especially from the removal of chlorine from showering water.
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As chlorine is a leading cause of fatigue, showering in filtered, chlorine-free water results in higher energy levels and overall greater health.
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Removing chlorine from showering water results in better air quality throughout the house.
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Without the drying effects of chlorine, skin becomes softer, healthier, and younger looking.
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Removing chlorine from showering water reduces the presence of skin rashes and the appearance of wrinkles.
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Because the hair is able to preserve its natural moisturizing oils, it becomes softer and healthier when chlorine is removed from showering water.
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When the body is able to retain its natural moisturizers, the need for costly lotions and moisturizers is greatly reduced.
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Reasons to Use a Whole House Water Filter
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Harmful chemicals constantly escape into the air in a home from the dishwasher, the toilet, and the shower.
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The release of water contaminants into the air results in poor air quality in a home. This poor air quality is a leading cause of asthma and bronchitis.
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The use of a countertop water filter and shower filter cannot entirely protect a home from harmful water contaminants.
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Shower filters, because they must filter water at extreme temperatures, are not 100% effective at removing all dangerous contaminants.
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Many skin rashes and other irritations are a result of chlorine and volatile organic chemicals
VOCs) that have become embedded in clothing washed in chlorinated water.
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The dishwasher releases more chlorine into the air than any other water source in the house, besides the shower.
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The use of a
whole house water filter is the only way to ensure pure, filtered water from every water source in the house.
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A whole house water filter purifies water efficiently and cost-effectively, making it a viable solution to drinking water contamination for a majority of people.
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The 2100 known water contaminants can make their way into our bodies not just from drinking the actual water but also from inhalation and dermal absorption.
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Merely avoiding drinking tap water by indulging in bottled water is not an effective means of protection against dangerous water contaminants.
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Benefits of Using a Whole House Water Filter
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Clean, filtered water emerges from every water source in the house.
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Chlorine and other chemicals are removed as soon as they enter a home’s plumbing system and are no longer released into the air.
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When chlorine and other chemicals are removed from water used for washing, these chemicals can no longer become embedded in clothing.
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Removing chlorine from the water used in dishwashing prevents chlorine vapors from being released into the air and reduces soap scum on dishes.
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Using a whole house water filter can alleviate the effects of asthma and allergies (for those who already suffer) by providing cleaner air to breathe in the house.
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Filtering water through a whole house water filter eliminates the risks of both drinking and showering in contaminated water.
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A whole house water filter is the only truly effective shower filter. It filters water at low temperatures to facilitate the removal of chlorine and other chemicals.
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Using a whole house water filter ensures protection from the carcinogenic effects of both drinking and inhaling chlorine and other dangerous chemicals.
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The use of a whole house water filter is the last means of protection from breakdowns in municipal water treatment and sanitation systems.
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