This Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) will support a study to investigate the influence of land cover on the isotopic signature of mercury in surface and subsurface soils across the conterminous United States. The $180,000 award, which runs from Aug 1, 2024 to Jul 31, 2026, will fund the analysis of soil samples from 100 sites nationwide to quantify the relative importance of different mercury input pathways and the differences between surface and subsurface soil mercury isotopic signatures across various land cover types. The findings will help clarify mercury cycling processes in soils and improve the representation of non-forest soil mercury dynamics in biogeochemical models. No sub-awards are planned under this grant.
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