Methyl Bromide In Preindustrial Air: Measurements From an Antarctic Ice Core

• Main Authors: Saltzman, Eric S., Aydin, Murat, De Bruyn, Warren J., King, Daniel B., Yvon-Lewis, Shari A.
• Format: Text
• Language: unknown
• Published: Chapman University Digital Commons 2004
• Subjects: Methyl Bromide; Methyl Halide; Halocarbons; Environmental Chemistry; Glaciology; Antarctic; West Antarctica; Siple; Siple Dome; Antarc*; Antarctica; ice core
• Online Access: https://digitalcommons.chapman.edu/sees_articles/77; https://digitalcommons.chapman.edu/cgi/viewcontent.cgi?article=1074&context=sees_articles

This paper presents the first ice core measurements of methyl bromide (CH3Br). Samples from a shallow Antarctic ice core (Siple Dome, West Antarctica), ranging in mean gas dates from 1671 to 1942, had a mean CH3Br mixing ratio of 5.8 ppt. These results extend the existing historical record derived f...