Travel Health Information Resource Page for Water purification

Read below for travel health advice on diseases and special needs from the MDtravelhealth channel.

Page Index

Would you like to Edit this page? Login or Sign up!
  • Overview You can't Edit

    1

    Water purifiers

    Unless water quality is assured, do not drink tap water unless it has been boiled, filtered, or chemically disinfected. Vigorous boiling for one minute is the most effective means of water purification. At altitudes greater than 6500 feet (2 km), boil for three minutes.

    Chemical disinfection with iodine is also effective. Add 2% tincture of iodine to one quart or liter of water (5 drops to clear water, 10 drops to cloudy water) and let stand for 30 minutes. If the water is cold, longer times may be required. (To kill cryptosporidia, which are an important cause of illness in those infected with HIV, let stand for 15 hours.) Alternatively, tetraglycine hydroperiodide tablets, such as Globaline, Potable-Aqua, and Coghlan's, may be purchased at most pharmacies. Instructions are enclosed and should be carefully followed. If the water is cloudy, twice the number of tablets should be used. If the water is extremely cold, it should be warmed, if possible, and the duration of contact time with the tablets should be increased. The taste of iodinated water may be improved by adding vitamin C (ascorbic acid). Iodinated water should not be consumed for more than a few weeks. Pregnant women, those with a history of thyroid disease, and those allergic to iodine should not drink iodinated water.

    A number of water filters are available. Those with smaller pores (reverse osmosis filters) provide the broadest protection, but they are relatively large and are readily plugged by debris. Also, some filters may be damaged by chlorine, if present, in the water. Those with somewhat larger pores (microstrainer filters) are ineffective against viruses but remove other organisms. To kill viruses, those using microstrainer filters should disinfect the water after filtration with iodine.

    Two important parasites, Cryptosporidia and Giardia, may be relatively resistant to disinfection by iodine. Filters that remove both these organisms will bear one of the following messages (verbatim) on their label:

    • Reverse osmosis
    • Absolute pore size of 1 micron or smaller
    • Tested and certified by NSF Standard 53 or NSF Standard 58 for cyst removal
    • Tested and certified by NSF Standard 53 or NSF Standard 58 for cyst reduction

    Objective data comparing different filters is limited.

    Be sure to change filter cartridges as recommended. When changing cartridges, always wear gloves and wash your hands afterwards, since the filters are typically contaminated by microorganisms.

    From the Centers for Disease Control (CDC)

    Treatment of Water to Make it Safe for Drinking

Back to Page Index

 

 

The MDtravelhealth channel is a source of travel health information for travellers, written by medical professionals.

MDth Navigation

Page is maintained by

The MDtravelhealth channel relies on medical professionals from all over the world to maintain the Travel Health Information on these pages.

Nobody :(
Are you a Doctor, nurse or other Medical professional that feels they can update this page? Please login or sign up and select MDtravelhealth Channel in the Account Area.

Topic Tags for Water purification

Topic Tags are what bind the Red Planet Travel site together, and are very important.

This place has been tagged:

If you think those tags are not perfect, then please let the person responsible for this page know by dropping a note in the anonymous drop box below, or better yet sign up or login and join our community, once you've got enough reputation score you can edit them yourself!

Got a Question?

?

Ask any travel related question or help others with your experience and earn Reputation Score and become a valued member of our community.

MDtravelhealth Medical Contributions

Before you apply read about the Medical Professionals Roles on Red Planet Travel

You need to be logged in and have applied to MDth channel to contribute to this page.

Have something to Contribute?

We are looking to grow the information on this site, if you have something to contribute to any page then we'd like to hear from you.

What's more you can now earn money (paid direct via Paypal) for writing descriptions about places you know.

You will need to tell other members about yourself and your relevant knowledge and experience about what you want to contribute about.

Look below for some example page types, and types of people whose views on a place might be useful to know.

Page Type: Hotel

Are there any special benefits or adaptations that this Hotel or it's location has that you can comment on in your capacity as a Doctor

Tell us your job, knowledge, experience..

My Experience: Doctor

This hotel has great CPR equipment and I can see the team are all trained

If you are the owner/manager of any place, then you can, of course, take control of your page and add relevant information other visitors might want to know