Critical air pollutant assessments and health effects attributed to PM<sub>2.5</sub> during and after COVID-19 lockdowns in Iran: application of AirQ<sup>+</sup> models.

Front Public Health · 2023 · PMC10249069 · PMID 37304093

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an increasing trendno p-value reported

The average AQI values for O 3 for the BF, LD, and AF periods showed an increasing trend for the 3 years.

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a decreasing trendno p-value reported

The average AQI values of NO 2 for the BF, LD, and AF periods showed a decreasing trend compared to 2019.

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