Dataset on Atmospheric CO2, H2O and NH3 in the Metropolitan Area of Naples, Italy

This dataset includes measurements of CO2 concentration in the air and the isotopic composition of carbon and oxygen in the CO2. This Zenodo dataset provides the first atmospheric CO₂ isotopologue data including C¹⁷OO from a volcanic environment, offering a novel triple oxygen isotope perspective to trace geogenic CO₂ signatures within the Campi Flegrei volcanic–hydrothermal system. The measurements were conducted between March 5, 2025, in Naples. This dataset can be considered a banchmark for that included in Di Martino et al., 2024, who conducted a similar survey between May 23 and 24, 2023, in Naples, within the urbanized area extending from Bacoli in the west to Torre del Greco in the east. Di Martino, R. M. R., Gurrieri, S., Paonita, A., Caliro, S., & Santi, A. (2024). Dataset on Atmospheric CO2 in the Metropolitan Area of Naples, Italy [Data set]. Zenodo. https://doi.org/10.5281/zenodo.13318841