Attaiyabun naghm fi madih sayyedul arab o-ujam by Altaaf ul quddus by Shah Wali Ullah Muhaddis Dehelvi
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The document discusses the results of a study on the impact of COVID-19 lockdowns on air pollution. Researchers found that lockdowns led to significant short-term reductions in nitrogen dioxide and fine particulate matter pollution globally as economic activities slowed. However, the impacts on greenhouse gases and long-term air quality improvements remain uncertain without permanent behavior and economic changes.
