Potability of backcountry water: Difference between revisions

Potability of backcountry water (view source)

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 Large rivers may be tainted with [[pesticide]] runoff and industrial pollutants from sources far upstream, but water in the backcountry, where people usually go for [[hiking]] or [[Backpacking (wilderness)|backpacking]], originates nearby and is free from these hazards.  The most common danger is [[microbe|microbial]], and this may come from natural or human sources.
-In most parts of the world, water may contain bacterial or protist contamination originating from human and animal waste, or sometimes from dead animals in or near the water.  ''[[Giardia lamblia]]'' and ''Cryptosporidium spp.'', both of which cause diarrhea (see [[giardiasis]] and cryptosporidiosis), are common pathogens.  Viruses may also be found in water, but are not common in developed countries.{{Fact|date=February 2007}}
+In most parts of the world, water may contain bacterial or protist contamination originating from human and animal waste, or sometimes from dead animals in or near the water.  ''Giardia lamblia'' and ''Cryptosporidium spp.'', both of which cause diarrhea (see [[giardiasis]] and cryptosporidiosis), are common pathogens.  Viruses may also be found in water, but are not common in developed countries.{{Fact|date=February 2007}}
 == Is giardiasis a threat in outdoor recreation? ==