Weather Patna: Air Quality Update
Weather and Air Quality in Patna
Patna has been confirmed as the second-most polluted city in India, following Delhi, with persistently high PM2.5 concentrations. Recent studies indicate that the city is facing an intensifying air quality crisis, particularly during the winter months.
During the 2024-25 period, Delhi recorded the highest annual PM2.5 levels, with extended periods classified as ‘severe’ air quality. Patna’s air quality issues are closely linked to similar meteorological conditions that affect Delhi, including low wind speeds and high humidity.
According to Climate Trends, “Patna is confirmed as the second-most polluted city after Delhi, with persistently high PM2.5 concentrations driven by strong atmospheric stagnation, highlighting an intensifying crisis in the eastern Indo-Gangetic Plain.” This geographical region is particularly vulnerable to pollution due to its seasonal weather patterns.
Over 70% of days in both Delhi and Patna fall under low-wind, high-humidity meteorological regimes, which can shift PM2.5 levels by up to 40% even without any change in emissions. Such conditions exacerbate the already critical air quality situation.
In Delhi, Stage III restrictions were applied for about 53 days when air quality reached the ‘severe’ category, while Stage IV measures lasted for around 15 days during severe air quality episodes. These measures reflect the ongoing struggle to manage pollution levels effectively.
The Central Pollution Control Board has noted that the Indo-Gangetic Plain records the highest PM2.5 pollution levels in India, making it a focal point for environmental concerns. The combination of local emissions and regional factors contributes significantly to the pollution crisis.
As observers continue to monitor the situation, the focus remains on the need for effective measures to combat air quality deterioration in Patna and surrounding areas. Details remain unconfirmed regarding any new initiatives aimed at addressing these pressing issues.
