Weather Patna: Air Pollution Update

Severe Air Pollution in Patna

Patna has been confirmed as the second-most polluted city in India, following Delhi, with persistent high PM2.5 levels recorded during the 2024-25 period. The alarming pollution levels are largely attributed to local emissions and regional meteorological conditions.

According to a recent study by Climate Trends, Delhi continues to face the most severe pollution crisis nationally, with the highest annual average PM2.5 levels and the longest stretches of ‘severe’ or ’emergency’ category air days. Patna’s situation is similarly dire, as it experiences strong atmospheric stagnation that contributes to its high PM2.5 concentrations.

Low wind speed, high humidity, and atmospheric stagnation are key factors that intensify PM2.5 levels in Patna during winter months. Over 70% of days in both Delhi and Patna fall under low-wind, high-humidity meteorological regimes, which exacerbate the pollution crisis.

During the winter of 2024-25, Delhi implemented Stage III restrictions for about 53 days when air quality reached the ‘severe’ category, with Stage IV measures lasting for around 15 days during particularly severe episodes. Such measures highlight the urgent need for effective pollution control strategies in the region.

The Indo-Gangetic Plain, where both cities are located, is particularly vulnerable to high pollution levels due to its geography and seasonal weather patterns. This area records the highest PM2.5 pollution levels in India, making it a focal point for environmental concerns.

As observers continue to monitor air quality trends, the situation in Patna remains critical. The persistent high PM2.5 levels indicate an intensifying crisis in the eastern Indo-Gangetic Plain, necessitating immediate action and long-term solutions to mitigate air pollution.

Details remain unconfirmed regarding the specific measures that may be implemented to address this ongoing issue. However, the need for comprehensive strategies to improve air quality in Patna and Delhi is increasingly recognized by environmental organizations and government bodies alike.