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Pilot study for investigation of mercury in litterfall at National Atmospheric Deposition Program Mercury Deposition Network sites

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 25, 2026 | Last Modified: 2018-01-01T00:00:00Z
Automated collectors at Elkmont passively accumulated litterfall for two consecutive 4-week periods each in 2008 and 2009. Samples were collected, and submitted for analysis of mercury by low-level, trace-metals methods. Species of leaf included poplar, maple, birch, pine, dogwood, hemlock. and magnolia. The average concentration of total mercury in the eight samples was 32.6 nanograms per gram. The estimated litterfall deposition for the eight samples was 12.4 nanograms per square meter.

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