Carcinogen (C)

These pesticides contain ingredients determined by U.S. EPA, the International Agency for Research on Cancer (IARC) or the State of California to be possible, suspected, likely, probable or known causes of cancer.

The absence of this designation does not mean a pesticide is free of carcinogens.  It may mean that its ingredients have not been evaluated or that insufficient data are available to make a determination.  Similarly, chemicals may have their classification changed when new data becomes available.

More about carcinogenicity from the Pesticide Action Network