Ice Core Record of Rising Lead Pollution in the North Pacific Atmosphere

• Main Authors: Osterberg, E., Mayewski, Paul Andrew, Kreutz, Karl J., Fisher, D., Handley, M., Sneed, Sharon B., Zdanowicz, C., Zheng, J., Demuth, M., Waskiewicz, M., Bourgeois, J.
• Format: Text
• Language: unknown
• Published: DigitalCommons@UMaine 2008
• Subjects: Earth Sciences; Devon Island; Greenland; Pacific; aleutian low; ice core
• Online Access: https://digitalcommons.library.umaine.edu/ers_facpub/45; https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1044&context=ers_facpub

A high-resolution, 8000 year-long ice core record from the Mt. Logan summit plateau (5300 m asl) reveals the initiation of trans-Pacific lead (Pb) pollution by ca. 1730, and a > 10-fold increase in Pb concentration (1981-1998 mean = 68.9 ng/l) above natural background (5.6 ng/l) attributed to ris...