Non-sea-salt aerosols that contain trace bromine and iodine are widespread in the remote troposphere. - Schill, Gregory P.; Froyd, Karl D.; Murphy, Daniel M.; Williamson, Christina J.; Brock, Charles A.; Sherwen, Tomás; Evans, Mat J.; Ray, Eric A.; Apel, Eric C.; Hornbrook, Rebecca S.; Hills, Alan J.; Peischl, Jeff; et al. (Atmospheric Chemistry & Physics Discussions, 2024)