1Department of Cancer Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
2Department of Midwifery, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
Air pollution composed of a mixture of substances resulting from many natural and human resources, which can cause mutations. Almost proven that air pollution contributes to lung cancer, and its relationship with other cancers, including bladder, cervical cancer, ovary, prostate, brain and breast suspect. Breast cancer is the most frequent cancer in women and leading cause of cancer death among them in all around the world. Poor prediction of personal risk factor leads to search for more factors. Mammary tumors in animals which has generated by compounds, give possible mechanisms for effects of environmental pollutants. Therefore, the purpose of our study is to review the available literature for investigating the relation of ambient air pollution and breast cancer. Findings of our study highlight the possibility of increasingtheincidence rate of breast cancer, developing to invasive cancer and mortality in both premenopausal and postmenopausal women by being subjected to air pollution.