BOS has just released an infographic called “A Guide on Drinking Water Quality Around the World”. The graphic lists all countries from A to Z and what percentage of the population in each country had access to contamination-free water supplies in 2017.

BOS states these facts are according to the Report on “Progress on household drinking water, sanitation and hygiene 2000-2017” published by the WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (JMP).

“Contamination-free” was defined as “compliant with standards for faecal contamination (E. coli) and priority chemical contamination (arsenic and fluoride) “.

Also, in the infographic, BOS has listed recommendations of the CDC (Centers for Disease Control and Prevention) for foreigners abroad to reduce their risk of travelers’ diarrhea and other diseases caused by unclean water for each country.

The CDC is considered one of the major operating components of the U.S. Department of Health and Human Services. The organization’s goal is to protect America from health and safety threats.

An interesting finding pointed out by BOS is that for numerous countries there seems to be a difference between the information from the WASH report and the CDC’s recommendations. For countries where almost 100 percent of the population has had access to clean drinking water, the CDC still recommends avoiding tap and well water sources and instead consume bottled water only.

As for what BOS recommends, they say it’s always better to stick to bottled or filtered water when in doubt about the quality of other available water sources. Furthermore, in many cases the best way to get access to clean drinking water is by using a reverse osmosis water filter system.

According to BOS, at least 2 billion people worldwide are using a drinking water source contaminated with feces, which can cause symptoms such as diarrhea, but also severe diseases like cholera and polio resulting in hundreds of thousands of deaths each year. Consequently, drinking water quality is a topic that should not be taken lightly.

Overall, the guide by BOS is a highly useful piece of information aimed at travelers, globetrotters, traveling nomads, etc. For those people, it is beneficial to know in what places/countries around the world you can or cannot drink directly from the tap.

If you would like to learn more about BOS or drinking water quality in general and how you can improve it, you can email Gene. She is head of content at BOS. You can also visit and read the guide on drinking water quality around the world; which, by the way, is not the only interesting post to be found in the blog section. “How Does Water Pollution Affect Humans (+ What Can You Do)? “, “6 Water Impurities that May Affect Your Skin + Prevention Tips” and “Do NOT Let Your Kids Drink Unfiltered Tap Water – Here’s Why” are also worthwhile checking out.


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