Impacts of Intensified Heatwaves on Escalation of Ozone and Reactive Nitrogen in Summer.

Environ Sci Technol · 2026 · PMC12810241 · PMID 41466123

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A decline in O 3 concentrations was observed beyond 39 °C, suggesting that O 3 formation does not increase indefinitely. NOx concentrations exhibited a decreasing trend with temperature, while NOz levels increased, reflecting enhanced thermally driven oxidation of NOx under HW conditions.

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