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Federal
Regional Trends of Isotopic Composition in Total Gaseous Mercury Across the United States
Department of the Interior —
The dataset presented here represents the concentrations and stable isotopic composition of gaseous mercury (Hg) for 31 sites across the United States. This national-... -
Federal
Landscape characteristics for urban gradients in United States cities across multiple scales
Department of the Interior —
This dataset contains tabular data at three scales (city, tract, and synoptic site) and related vector shapefiles (for watersheds or buffers around synoptic sites)...