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National Drinking Water Database


Cyanazine (Bladex) in Iowa


Cyanazine is an herbicide used on corn to control annual grasses and broadleaf weeds. [read more]

The Most Polluted Communities in Iowa

4 water utilities reported detecting Cyanazine (Bladex) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Cyanazine (Bladex) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Fox Creek Benefitted Wtr. District
Ankeny, IA
4881 of 10.19 ppb
(0.19 ppb)
2Arlington Water Supply
Arlington, IA
4901 of 50.12 ppb
(0 to 0.58 ppb)
3Reinbeck Water Supply
Reinbeck, IA
1,7511 of 50.03 ppb
(0 to 0.17 ppb)
4Central City Water Supply
Central Ci, IA
1,1571 of 70.02 ppb
(0 to 0.11 ppb)

Health Based Limits for Cyanazine (Bladex)

StandardDescriptionLevel
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.1 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.1 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.70 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.100 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.100 ppb

Violation Summary for Cyanazine (Bladex) in Iowa

There are no violations reported for this contaminant in Iowa