Dust Events Increase Ice Nuclei but Decrease Cloud Condensation Nuclei: An Observational Study in an Inland City

This dataset contains daily‑averaged field observations conducted in Lanzhou from March 1 to April 30 2025, including cloud condensation nuclei (CCN), ice‑nucleating particles (INP), aerosol size distributions from APS and SMPS, and mass concentrations of PM2.5 and PM10. The DateTime column shows the observation date; blank cells indicate missing or below‑detection‑limit measurements. Please cite Ji et al. (2026) when using these data. The dataset is distributed under the CC‑BY‑4.0 license.