Breast cancer is partly caused by toxic chemicals in the environment, according to a recent study by the Institute of Medicine (IOM). These pollutants are surprisingly common, and most women are exposed to them from a variety of sources. Carcinogenic pollutants come from radiation and from consumer products. They are in household cleaning products, microwaves, cosmetics, hairsprays, and refrigerators. These chemicals seep into water as runoff from landfills, affect people as well as animals, and have been shown to cause breast cancer in women. The Breast Cancer Action Foundation believes that the environmental factor has been overlooked in research, and that its influence has been grossly underestimated. \"We need to understand the context of this issue, and we need to focus on individual behavior that may be attributed to skyrocketing rates of breast cancer,\" says Karuna Jaggar of Breast Cancer Action.