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Boundary Waters Quetico Forum

Listening Point - General Discussion

Something to keep in mind . . .

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boonie

10/06/2017 05:43PM

Toxic water

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jhb8426

10/06/2017 10:43PM

The article doesn't say but do filters or boiling fix the problem?

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thebotanyguy

10/06/2017 11:05PM

quote jhb8426: "The article doesn't say but do filters or boiling fix the problem?"

No - the toxic molecules are smaller than the pore size of filters, and the molecules are heat stable, so filtration and boiling are ineffective.

I made a more in depth comment on a previous thread.

"Said one of these men, long past seventy years of age: 'I could carry, paddle, walk and sing with any man I ever saw. I have been twenty-four years a canoe man, and forty-one years in service; no portage was ever too long for me. Fifty songs could I sing. I have saved the lives of ten voyageurs. Have had twelve wives and six running dogs. I spent all my money in pleasure. Were I young again, I should spend my life the same way over. There is no life so happy as a voyageur's life!'"

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TominMpls

10/07/2017 07:10AM

Ah, the crap we used to call "blue green algae". Nasty stuff. Basically, if the water looks almost fluorescent green, don't drink it no matter how much you filter it. Keeping a fish tank, I associate it with new tank setups that don't have enough biomass to reach equilibrium and get the nitrogen cycle going, so it's strange to think of this being an issue on pristine lakes. Hope they figure it out.

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nctry