Guest guest Posted November 5, 2001 Report Share Posted November 5, 2001 In a message dated 11/5/2001 3:42:48 PM Pacific Standard Time, jcastor@... writes: > They informed me that it depends upon my location within the city > and how the water was blended. (The ratio from wells or from the local > river). After I had mentioned my location within the city, he rambled off > over 6 chemicals added to our local water supply. I can only remember > Aluminum & Charcoal. The additives other than Chlorine are used to clarify > the water. Evidently after the initial treatment with chemicals, other > chemicals are then added to remove the initial chemicals. Quite a > process... > Jeff, Thanks for your reply. My husband is an environmental attorney and municipal water happens to be one of his specialties. I could tell you some rather ugly stories about water treatment plants; but if you're drinking city water, you really don't want to hear them. Somebody has to make the decisions about how much stuff has to be removed from the water and somebody else has to decide what mechanical and chemical methods will be used to do that. Then a bunch of scientific types decide what is safe FOR EVERYONE...that means that the EPA decidse upon allowable ppm (parts per million) and ppb (parts per billion) of things like arsenic and copper and other such lovelies. The problem with the " safety " of these things is that they are tested on mice. When the mice begin to react to the assault, that is the level called the lowest " effective dose " (ED50, meaning that in 50% of the test subjects, which are mice, this is the level at which there begin to be indicators of the assault) and when the mice begin to die from the assault, that is called the " lethal dose " (LD50, same as ED50 except this is the level at which 50% of the test subjects die). You are probably now asking " What does that have to do with me, an adult human, and my family? " That's a good question and one we should all be asking. The answer is " Absolutely nothing. " However, it would be unethical to run these same tests on humans, so we have to test on animals (some may still opine as unethical) to get some baseline from which to design our safety standards. Yes, these safety standars for humans are based on the ED and LD in rats and mice. Oh, and yes, this is the same technique that is used to decide how many ppm of mercury is safely contained in immunizations that our children are getting. Of course, the rats and mice used for these studies are extremely bright and the scientists are able to detect those subjects whose speech and cognitive skills have been negatively effected by the neuro toxic mercury (she said in jest!).So, water, air, injection, or consumption, we are partaking of lots of bad gunk; but at least our government has the LD50 so we'll know if we're getting close to dangerous levels (typed with as much cynicism as my 10 fingers can muster). Anyway, back to the subject...I can't help but think that, although it's a really great idea to rebuild the colonies of beneficial flora, we must be minimizing the good effects by drinking chlorinated water with it. Anyone know where I can get a home distiller for the holidays? Amber Quote Link to comment Share on other sites More sharing options...
Guest guest Posted November 6, 2001 Report Share Posted November 6, 2001 Amber, Thanks for the post & the information!! WOW....bottled water here I come. I believe you that you have some rather ugly stories about treatment plants. Someone I know used to work at the pump station and filled me in on what they would catch on their intake screens. I think most of us just take for granted that the water is " clean " . Jeff Jeff, Thanks for your reply. My husband is an environmental attorney and municipal water happens to be one of his specialties. I could tell you some rather ugly stories about water treatment plants; but if you're drinking city water, you really don't want to hear them. Somebody has to make the decisions about how much stuff has to be removed from the water and somebody else has to decide what mechanical and chemical methods will be used to do that. Then a bunch of scientific types decide what is safe FOR EVERYONE...that means that the EPA decidse upon allowable ppm (parts per million) and ppb (parts per billion) of things like arsenic and copper and other such lovelies. The problem with the " safety " of these things is that they are tested on mice. When the mice begin to react to the assault, that is the level called the lowest " effective dose " (ED50, meaning that in 50% of the test subjects, which are mice, this is the level at which there begin to be indicators of the assault) and when the mice begin to die from the assault, that is called the " lethal dose " (LD50, same as ED50 except this is the level at which 50% of the test subjects die). You are probably now asking " What does that have to do with me, an adult human, and my family? " That's a good question and one we should all be asking. The answer is " Absolutely nothing. " However, it would be unethical to run these same tests on humans, so we have to test on animals (some may still opine as unethical) to get some baseline from which to design our safety standards. Yes, these safety standars for humans are based on the ED and LD in rats and mice. Oh, and yes, this is the same technique that is used to decide how many ppm of mercury is safely contained in immunizations that our children are getting. Of course, the rats and mice used for these studies are extremely bright and the scientists are able to detect those subjects whose speech and cognitive skills have been negatively effected by the neuro toxic mercury (she said in jest!).So, water, air, injection, or consumption, we are partaking of lots of bad gunk; but at least our government has the LD50 so we'll know if we're getting close to dangerous levels (typed with as much cynicism as my 10 fingers can muster). Anyway, back to the subject...I can't help but think that, although it's a really great idea to rebuild the colonies of beneficial flora, we must be minimizing the good effects by drinking chlorinated water with it. Anyone know where I can get a home distiller for the holidays? Amber Quote Link to comment Share on other sites More sharing options...
Guest guest Posted November 6, 2001 Report Share Posted November 6, 2001 In a message dated 11/6/2001 3:20:34 AM Pacific Standard Time, jcastor@... writes: > Someone I know used to work at the pump station and filled me in on > what they would catch on their intake screens. I think most of us just take > for granted that the water is " clean " . > Jeff > Yeah, that's called " primary " treatment...the sifting of solids out of the water. Dandy, huh? Amber Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.