NRSA2324 Nitrate Stable Isotope Ratios

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Metadata Last Checked: June 27, 2025 | Last Modified: 2025-06-02

Stable Isotope Ratios of Nitrate from the National Aquatic Resource Survey 2023 and 2024. We analyzed 163 samples with nitrate concentrations above 2 mg-N/L for oxygen and nitrogen isotopes of nitrate. We also include the water stable isotope values for those same samples. Metadata and QA data are provided in the spreadsheet.

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bureauCode	[ "020:00" ]
identifier	https://doi.org/10.23719/1532320
programCode	[ "020:000" ]
references	null
rights	null