Cyanazine is an herbicide that was mainly used on corn crops in Minnesota from the early 1970s through the 1990s. Cyanazine use stopped in 2002 when the registration of this pesticide was voluntarily cancelled. Cyanazine breaks down in the environment into different chemicals. Some of the breakdown products of cyanazine have been detected in surface water and groundwater in Minnesota, including private drinking water wells. Consuming water with concentrations of total cyanazine (cyanazine plus its breakdown products) above the Health Risk Limit (HRL), set by the Minnesota Department of Health (MDH) at 1 microgram per liter (µg/L) or 1 part per billion (ppb), may present a health risk when consumed over long periods of time. Consuming water with total cyanazine concentrations above 3 µg/L may pose a risk if consumed in shorter periods of time. More information on the risks associated with cyanazine and its breakdown products is available on the MDH website.
Cyanazine is an herbicide that was mainly used on corn crops in Minnesota from the early 1970s through the 1990s. Cyanazine use stopped in 2002 when the registration of this pesticide was voluntarily cancelled. Cyanazine breaks down in the environment into different chemicals. Some of the breakdown products of cyanazine have been detected in surface water and groundwater in Minnesota, including private drinking water wells. Consuming water with concentrations of total cyanazine (cyanazine plus its breakdown products) above the Health Risk Limit (HRL), set by the Minnesota Department of Health (MDH) at 1 microgram per liter (µg/L) or 1 part per billion (ppb), may present a health risk when consumed over long periods of time. Consuming water with total cyanazine concentrations above 3 µg/L may pose a risk if consumed in shorter periods of time. More information on the risks associated with cyanazine and its breakdown products is available on the MDH website.