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Atmospheric stagnation as the dominant driver of PM2.5 pollution episodes in Montevideo, Uruguay
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DOI：10.1016/j.uclim.2026.103025.png)
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Abstract
En 中文
• PM2.5 acute pollution episodes peak in winter evenings due to boundary layer collapse. • Episodes occur simultaneously city-wide, confirmed significant by Monte Carlo test. • ERA5 composites reveal a coherent synoptic stagnation signal spanning ∼1000 km. • Dual-threshold detection methodology validated against national standard exceedances.
Keywords:
PM2.5 acute pollution episodes
Atmospheric stagnation
Planetary boundary layer
Residential biomass burning
Synoptic meteorology
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6.9
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2.6K
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1.2W
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