Cyanazine (Bladex)
Status: No national drinking water standard exists
Cyanazine, a cancer-causing chemical related to the herbicide atrazine, has been phased out of use in the U.S. since 1995. Cyanazine has been also linked to birth defects and damage to the central nervous system.
2017-2019:
2
states detected
3
utilities detected
16,869
people served
0
states over health guideline
0
utilities over health guideline
0
people served over health guideline
Health concerns for cyanazine
Cancer
Change to fetal growth and development
Harm to the central nervous system
State and national drinking water standards and health guidelines
EWG Health Guideline 1 ppb
The EWG Health Guideline of 1 ppb for cyanazine was defined by the Environmental Protection Agency as a lifetime health-based limit for effects other than cancer. This health guideline protects against .
ppb = parts per billion
States reporting cyanazine in drinking water
UTILITIES WITH CONTAMINATION | |||
---|---|---|---|
State | Utilities | People Served | |
Nebraska | 2 | 10,728 | |
Iowa | 1 | 6,141 |
Filtering technologies that reduce cyanazine

Activated Carbon

Reverse Osmosis
Utilities with the highest amounts of cyanazine, 2017-2019
Utility | Location | Tests | Average level | People served |
---|---|---|---|---|
Soldier Water Supply | Soldier, IA | 1 of 9 | 1.87 ppb | 177 |
Alburnett Water Supply | Alburnett, IA | 1 of 3 | 0.237 ppb | 673 |
Maquoketa Municipal Water | Maquoketa, IA | 1 of 3 | 0.0300 ppb | 6,141 |
Edgar, City of | Edgar, NE | 1 of 12 | 0.0125 ppb | 498 |
City of Lexington | Lexington, NE | 1 of 55 | 0.00286 ppb | 10,230 |
Utility | Location | Tests | Average level | People served |
---|---|---|---|---|
City of Lexington | Lexington, NE | 1 of 55 | 0.00286 ppb | 10,230 |