Cyanide (free)*
EWG Health Guideline
150 ppb
National Average
2.29 ppb
Detected In
22 utilities
Health Risks
The EWG Health Guideline of 150 ppb for cyanide (free) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the brain and nervous system.
Filtration Methods
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes
Activated Carbon
no
Reverse Osmosis
yes
Ion Exchange
yes