Ammonia oxidation and urea oxidation in Chesapeake Bay and in the global ocean

Two datasets are included in this submission. One dataset contains newly meausured ammonia oxidation, urea oxidation, nitrous oxide production from ammonium and urea in Chesapeake Bay, one of the largest estuaries in the world. The other dataset contains compiled observations of ammonia oxidation, urea oxidation, qPCR analysis of amoA and ureC gene abundance in the global ocean from previous studies. Tang, W., C. Hexter, R. Dai, et al. 2025. “ Substrate Effect on the Contribution of Ammonium and Urea to Marine Nitrification and Nitrous Oxide Production.” Environmental Microbiology 27, no. 10: e70187. https://doi.org/10.1111/1462-2920.70187.