This sounds like superfluous treatment technology. Chrome +6 is readily reduced to Chrome +3 by standard chemical reducing agents, Just like we all learned in freshman chemistry. Mr Giammar's statement about Chrome +6 in drinking water having a negative effect on human health is wrong. He should read and cite the current scientific literature, rather than the California regulations. Canada has read the current literature and they have retained their historic drinking water guideline of 50 ppb, which includes a substantial margin of safety. Chrome +6 at drinking water levels is immediately converted to Chrome 3 after ingestion because saliva and gastric juice are loaded with reducing agents. Humans have a very high reductive capacity in the GI tract.. Also, there are lots of groundwaters with natural Chrome +6. so we can't blame industrial discharges for everything.
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
This sounds like superfluous treatment technology. Chrome +6 is readily reduced to Chrome +3 by standard chemical reducing agents, Just like we all learned in freshman chemistry. Mr Giammar's statement about Chrome +6 in drinking water having a negative effect on human health is wrong. He should read and cite the current scientific literature, rather than the California regulations. Canada has read the current literature and they have retained their historic drinking water guideline of 50 ppb, which includes a substantial margin of safety. Chrome +6 at drinking water levels is immediately converted to Chrome 3 after ingestion because saliva and gastric juice are loaded with reducing agents. Humans have a very high reductive capacity in the GI tract.. Also, there are lots of groundwaters with natural Chrome +6. so we can't blame industrial discharges for everything.