changm55
New member
btw ur link on the arsenic level in irvine says the range is from "not detected" to 7.0ppb, with the fedearl acceptable level being 10ppb... then ur following post says...
Arsenic Level in Tap Water
(in parts per billion, or ppb)
Approximate Total Cancer Risk
(assuming 2 liters consumed/day)
0.5 ppb 1 in 10,000
1 ppb 1 in 5,000
3 ppb 1 in 1,667
4 ppb 1 in 1,250
5 ppb 1 in 1,000
10 ppb 1 in 500
20 ppb 1 in 250
25 ppb 1 in 200
50 ppb 1 in 100
i dunno what u take of these stats but personally i still think the federal level has a pretty low standard (10ppb 1:500 get cancer)... i dont understand how u can see these numbers and still say irvine actually has low levels... maybe we are reading these numbers differently... but i dunno, i remember when i was looking into this 10ppb is suffice for restaurants that dont use filters to require to post those cancer signs so ive been kinda iffy...
boiling water actually increases arsenic levels cause it doesnt boil away while the actual H2O boils away... so it actually increases arsenic ppb concentration
Arsenic Level in Tap Water
(in parts per billion, or ppb)
Approximate Total Cancer Risk
(assuming 2 liters consumed/day)
0.5 ppb 1 in 10,000
1 ppb 1 in 5,000
3 ppb 1 in 1,667
4 ppb 1 in 1,250
5 ppb 1 in 1,000
10 ppb 1 in 500
20 ppb 1 in 250
25 ppb 1 in 200
50 ppb 1 in 100
i dunno what u take of these stats but personally i still think the federal level has a pretty low standard (10ppb 1:500 get cancer)... i dont understand how u can see these numbers and still say irvine actually has low levels... maybe we are reading these numbers differently... but i dunno, i remember when i was looking into this 10ppb is suffice for restaurants that dont use filters to require to post those cancer signs so ive been kinda iffy...
boiling water actually increases arsenic levels cause it doesnt boil away while the actual H2O boils away... so it actually increases arsenic ppb concentration