What about other types of cancer?
The results from a study of Italian women suggests that women exposed to the triazine herbicides atrazine and simazine had a higher risk of ovarian cancer than women with little or no exposure.
No other studies have been done to see if ovarian cancer rates are higher in American women exposed to atrazine.
So, we do not have strong evidence that atrazine causes breast or ovarian cancer in women. But, it should be pointed out that this is based on very few studies.
While there are other studies of cancer rates in farm women and female farm workers, they usually have not measured exposures to specific pesticides.