press_release_conclusion: A study of nearly 280,000 women in the United States has found that living in areas with a high level of fine particles from air pollution may increase a woman’s chance of having dense breasts – a well-established risk factor for breast cancer – according to a new study published in the open access journal Breast Cancer Research.
abstract_conclusion: Exposure to PM2.5 and O3 may in part explain geographical variation in mammographic density.