Dataset for: Near Real-Time & Benchtop XRF Intercomparison for PM Elemental Analysis on Quartz and Teflon Filters: A Case Study Across Three European Cities — Cyprus Atmospheric Observatory Nicosia Station (CAO-NIC) Data

This dataset contains daily averaged elemental concentrations in PM2.5 measured at the Cyprus Atmospheric Observatory Nicosia station (CAO-NIC), Cyprus, for the period 1 January 2022 to 31 December 2022. Measurements were performed using an Xact X-ray fluorescence (XRF) analyzer, which provides near-real-time elemental analysis of particulate matter collected on a filter tape. The CAO-NIC station (35.140515° N, 33.380737° E) is located in Nicosia, Cyprus, and represents an urban background site influenced by traffic emissions, regional pollution transport, and occasional long-range dust events from North Africa and the Middle East. Raw measurements were recorded at hourly resolution and subsequently averaged to daily mean concentrations. Daily averages were calculated only when more than 70% of hourly data (≥17 hours) were available. The dataset also includes a column indicating the hourly coverage used for each daily average. The measurements were obtained using a PM2.5 size-selective inlet. Elemental concentrations are reported in ng m⁻³. Users are kindly requested to contact the authors if the dataset is used in scientific publications or other applications. Related publication: The dataset is used in the study "Near Real-Time & Benchtop XRF Intercomparison for PM Elemental Analysis on Quartz and Teflon Filters: A Case Study Across Three European Cities", currently under review in Aerosol Measurement Techniques. Contact: Michael Pikridas ([e-mail])