Removing Cryptosporidium : A guide to filtered drinking water
Copyright 2006 Marc Deschamps
Many, but not all available filtered drinking water systems remove Cryptosporidium. Some filter designs are more suitable for removal of Cryptosporidium than others.
Why is it so important to remove Cryptosporidium ?
Cryptosporidium is a protozoan parasite affecting the gastrointestinal tract of humans and animals. It is shed in the feces in the form of an "oocyst," which has a hard shell to protect it from the environment. Infections may be asymptomatic or may cause watery diarrhea and abdominal cramps. The organism is transmitted by the fecal-oral route.
Outbreaks have most commonly been associated with person-to person (day care center) and waterborne (drinking and recreational water) modes of spread. Foodborne and animal-(especially calves) to-person spread has also been documented.
Filtered drinking water systems that have the words "reverse osmosis" on the label protect against Cryptosporidium. Many other types of filters that work by micro-straining also work. Look for a filter that will remove particles that are less than or equal to 1 micron in diameter. There are two types of these : "absolute 1 micron" filters and "nominal 1 micron" filters.
The absolute 1 micron filter will more consistently remove Cryptosporidium than a nominal filter. Some nominal 1 micron filters will allow 20% to 30% of 1 micron particles to pass through.
NSF-International (NSF) does independent testing of filtered drinking water systems to determine if they remove Cryptosporidium. To find out if a particular filter is certified to remove Cryptosporidium, you can look for the NSF trademark plus the words "cyst reduction" or "cyst removal" on the product label information. You can also contact the NSF at 789 N. Dixboro Road, Ann Arbor, MI 48105 USA, toll free1-877-867-3435, fax 313-769-0109, email info@nsf.org, or visit their Web site at www.nsf.org/certified/DWTU/.
At their Web site, you can enter the model number of the unit you intend to buy to see if it is on their certified list, or you can look under the section entitled "Reduction claims for drinking water treatment units - Health Effects" and check the box in front of the words "Cyst Reduction." This will display a list of filters tested for their ability to remove Cryptosporidium.
Because NSF testing is expensive and voluntary, some filtered drinking water systems that may work against Cryptosporidium have not been NSF-tested. If you chose to use a product not NSF-certified, select those technologies more likely to reduce Cryptosporidium, this includes filters with reverse osmosis and those that have an absolute pore size of 1 micron or smaller.
Filtered drinking water systems collect germs from water, so someone who is not HIV infected or immune impaired should change the filter cartridges. Anyone changing the cartridges should wear gloves and wash hands afterwards. Filters may not remove Cryptosporidium as well as boiling does because even good brands of filters may sometimes have manufacturing flaws that allow small numbers of Cryptosporidium to get in past the filter. Selection of NSF-Certified filters provides additional assurance against such flaws.
Also, poor filter maintenance or failure to replace the filter cartridges as recommended by the manufacturer can cause a filter to fail.
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Sterile No More: Blend Creations Warms Up Stainless Steel Jewelry
Ottawa, Ontario, (ContentDesk) December 7, 2005 -- Frustrated by a jewelry industry of extremestoo ornate on one end, too austere on the otherhusband and wife design team Vivian Cheng and Eric Jean-Louis created Blend Creations to spotlight their just right collaborations. Their stainless steel jewelryavailable online at www.blendcreations.com and at select boutiquesfeatures stainless steel pendants of varying sizes with bamboo, coral, bone tile, mother of pearl, ox bone, and Japanese paper inlays. In the past five years or so, stainless steel, titanium and other unlikely jewelry media, like concrete, have been surfacing more and more in jewelry design, Cheng explains, with Jean-Louis adding,
No doubt in a backlash of sorts against the chaotic, cluttered jewelry thats flooded the market for so long. And while Eric and I were excited to see the emergence of this new artistic...
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Mystery vs Elvis Preston King
Elvis Preston King claims to be the top seduction artist in the world. He seduces one to three new girls per day. No pros and no escorts. He is looking for the perfect wife. The problem is he as been looking for 40 years.
When cornered he admits he is the world's top playboy. Recently Elvis issued a challenge to the pick up artists of the world to meet him in a city outside the US that no contestant has ever been in before. Give each contestant a five dollar per day allowance and a notebook and ink pen and see who really gets laid the most.So far no one has stepped up to the plate to take Elvis on. However, Elvis stepped on a man named Mystery's toes. Mystery also claims to be the world's top pick up artist.
Mystery quickly rounded up his friends and posted reasons why Elvis is a fake. Well I have met Elvis. I have seen him in action and he has photos of every last girlfriend.Mystery has chosen to defame Elvis out of fear of head to head competition. I think Elvis has him...
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The impact of inventions on the printing industry.
Copyright 2006 Smarket Limited
Printing is not something one may think of often, but it does impact our lives everyday.
From the morning newspaper to church on Sundays, printing is important to our society.
Without printing we wouldn't have books, papers, magazines or many other information tools.
To truly understand printing one must look at the machines, processes and technology that has shaped its history.
The construction of machines have taken printing from hand cranked to high power.
The first papermaking machine which developed rolls of paper was made in London in 1803.
In 1846 Richard March Hoe made a rotary press that arranged printing plates on a cylinder, pressing them onto the paper.
In 1866 a machine was invented for the purpose of folding newspapers.
In 1884 the typesetting machine, invented by Ottmar Mergenthaler in Baltamore, made printing easy.
All of these inventions started...
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New Communication Tools Improve Effectiveness of Whiteboard Presentations
Bakersfield, California (ContentDesk) August 24, 2005 -- New ergonomically designed communication tools manufactured by Zeratas reduce meeting costs by improving the effectiveness, speed, and quality of whiteboard presentations.The complete system consists of a Pentiva? dry-erase marker manager that holds four different pen colors and an EraserRedi? high-quality whiteboard eraser with integrated NuRiva? professional strength spray cleaner.Both products may be securely stored on a whiteboard using the included mounting clip ensuring that pens, eraser, and spray cleaner are always organized and ready for use.
The interchangeable storage clips are easily installed without tools using peel-and-stick adhesive.
Since narrow pen trays are no longer used, the possibility of whiteboard accessories being accidentally knocked off is eliminated.
These products are excellent for use with easel, flip, or moveable whiteboards or whiteboards without pen trays. Return on investment...
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InsureMe Provides Resources for Finding Home Insurance Insurance Shopping Service Offers Tips for Hard-To-Find Home Insurance
Denver, CO (ContentDesk) July 19, 2006 -- With the first named tropical storm under our belt, many homeowners are looking for home insurance -- and some are having a difficult time finding it. To help consumers protect themselves from this years high-risk weather season, InsureMe, the leading online insurance shopping service, is providing tips for finding adequate insurance protection. While homeowners in coastal regions of the U.S. are facing dramatic premium hikes -- and worse yet, a shortage...
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Ink cartridges > InsureMe Provides Resources for Finding Home Insurance Insurance Shopping Service Offers Tips for Hard-To-Find Home Insurance
BusinessFinance.com Introduces How to Establish Business Credit Card Accounts Through Business Finance Coach
Foothill Ranch, CA (ContentDesk) June 29, 2006 -- BusinessFinance.com has launched a resource that shows businesses how to establish business credit cards without using the owners social security number. This is one of the necessary steps every business owner must take to separate their personal credit from their business credit. The information is provided inside the Business Finance Coach. Businesses must have three (3) business credit cards in order to build solid business credit scores, ...
BusinessFinance.com Introduces How to Establish Business Credit Card Accounts Through Business Finance Coach
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Local Solutions To The Energy Dilemma to Be Addressed at Upcoming Conference
New York, NY (ContentDesk) March 7, 2006 -- Over 30 leading experts in energy, agriculture, economics, engineering, geology, politics, transportation and sustainability will gather during the final week of April to address the local impact of what is viewed to be an impending crisis in world affairs.As the worlds demand for oil has grown to match total production capacity, some experts believe reserves have virtually disappeared.The Hirsch Report, a study on Peak Oil and its consequences was...
Local Solutions To The Energy Dilemma to Be Addressed at Upcoming Conference Removing Cryptosporidium : A guide to filtered drinking water Ink cartridges
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Hoodia4Weightloss Announces Pre-Summer Hoodia Gordonii Weight Loss Pill Special
Hoodia4Weightloss, a company that features hoodia gordonii cactus extract in its weight loss pill products, announces a pre-summer special just in time to shed those stubborn pounds before the swimsuit season approaches. 
The special offer, good through Memorial Day weekend,...
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How To Build A Picnic Table
Building a picnic table is a big project but fairly easy to do if you follow some step-by-step instructions. There are plenty of easy to follow plans available on the Internet that is fun for both a beginner and an advanced builder alike. There are also a number of website where one can purchase detail picnic table plans custom designed for specific tables.
When building a sturdy picnic table always use good quality kiln dried lumber, especially for the table top. It is also desirable...
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Affordable Term Life Insurance
Depending on your age, you may find that term life insurance works best for your situation. Term life insurance is ideal for younger people with families to support. In fact, term life insurance should be the most affordable option for you until you reach the age of 50, at which time you should strongly consider going with a life insurance policy that has no term limits ? such as a whole life policy.
Affordable term life insurance should replace the income that you would have provided...
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