Weather Bee | The curious case of clean air after midnight

In February, Delhi experienced an unexpected shift in air quality patterns, with significant improvements noted during nighttime hours. Contrary to typical trends where air pollution tends to worsen overnight, data indicated that the capital's air quality improved after midnight. However, this trend reversed as dawn approached, leading to a spike in pollution levels before sunrise. Experts attribute these fluctuations primarily to meteorological conditions, including changes in temperature and wind patterns that influence the dispersion of pollutants. This phenomenon raises questions about the effectiveness of current air quality management strategies in the face of natural weather cycles. Understanding the underlying causes of these unusual air quality patterns is crucial for formulating more effective measures to combat pollution in urban environments like Delhi, which has been grappling with air quality issues for years.