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Ambient Air Pollutant Dynamics (2010–2025) and the Exceptional Winter 2016–17 Pollution Episode: Implications for a Uranium/Arsenic Exposure Event
Published 2025“…PM₁₀ also shows a general decrease. CO appears relatively more stable.</li><li><b>Imputed Data Characteristics:</b> Prior to January 2016, PM₂.₅ concentrations were imputed using an XGBoost model trained on concurrent PM₁₀, NO₂, EC, CO, and SO₂ measurements, constrained by empirically derived ratio bounds. …”