Polluted cisternsgreenspun.com : LUSENET : TimeBomb 2000 (Y2000) : One Thread |
Someone told me today, that water runoff from asphalt roofs into cisterns for drinking was banned in Maryland a few years back. Beware.
-- Arthur Rambo (buriedtreasure@webtv.net), September 03, 1998
Wouldn't a good filter filter out any chemicals, etc?
-- Bardou (bardou@baloney.com), September 03, 1998.
Asphalt contains a lot of nasty carcinogens and some will get into the runoff. Drinking them for a lifetime is probably as bad for your digestive tract as a cigarette habit is for your lungs, but on the other hand real coffee is probably also rich in them and they haven't banned that (yet?!)In a survival situation for a few months the risk is probably small. After all there were generations who DID rely on that sort of water for a lifetime.
These sorts of carcinogens (polycyclic aromatic hydrocarbons) are removed with very high efficiency by activated charcoal filters, so that may be another answer.
-- Nigel Arnot (nra@maxwell.ph.kcl.ac.uk), September 04, 1998.