Aerosol light absorption alleviates particulate pollution during wintertime haze events.

Proc Natl Acad Sci U S A · 2025 · PMC11725903 · PMID 39715431

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an increasing trendno p-value reported

The average SSA shows an increasing trend with deterioration of PM pollution, fluctuating within a narrow range from 0.85 to 0.90, which is caused by an increase in secondary aerosols.

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a decreasing trendno p-value reported

When local emissions dominate the air pollution in Beijing, the vertical distribution of BC is marked by a decreasing trend with increasing altitude.

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