2014-11-18 11:25 GMT+01:00 Elena ``of Valhalla'' <elena.valha...@gmail.com>:
> * can be drinked after filtering > * can be drinked after boling / sterilizing > * too contaminated for easy treatment > yes, the kind of contamination could matter (biological / chemical / radioactive) in some (IMHO rare) cases. Chemical contamination will typically be divided into anorganic (Cu, As, Mg, Pb, Hg, ... basically everything that isn't based on carbon) and organic (pesticides, herbicides, solvents, gasoline...) substances. Of course the concentration will also matter (you'll always find something, the question will be how much and how much of a certain substance/organism is tolerable for an adult, an infant or a pregnant woman). But most people will not be able to use these informations properly even if they were available in detail ;-). And we will not be able to keep them current. In the end, we are a map, not a water monitoring association. contamination:biological=yes contamination:anorganic=... "could be drunk after filtering": I guess almost everything can be filtered/decontaminated with adequate equipment, time and if money and energy are not an issue ;-) You'll need different filters for different kinds of contamination btw. ;-) cheers, Martin
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