Weather Patna: Air Quality Update
Patna has been confirmed as the second-most polluted city in India during the 2024-25 period, following Delhi, which recorded the highest annual PM2.5 levels. The alarming air quality in both cities is exacerbated by specific meteorological conditions that can shift PM2.5 levels by up to 40% without any change in emissions.
According to a report by Climate Trends, Delhi continues to face the most severe pollution crisis nationally, characterized by the longest stretches of ‘severe’ or ’emergency’ category air days. The situation in Patna is similarly dire, with persistently high PM2.5 concentrations driven by strong atmospheric stagnation.
Low wind speed, high humidity, and atmospheric stagnation are key factors that intensify PM2.5 levels in winter. Over 70% of days in both Delhi and Patna fall under these low-wind, high-humidity meteorological regimes, contributing to the ongoing air quality crisis.
During the 2024-25 winter season, Delhi implemented Stage III restrictions 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. Such measures highlight the urgent need for action in both cities.
The Indo-Gangetic Plain, where both Delhi and Patna are located, is particularly vulnerable to high pollution levels due to its geography and seasonal weather patterns. This region records the highest PM2.5 pollution levels in India, raising concerns about public health and environmental sustainability.
As observers continue to monitor the situation, the need for effective pollution control measures becomes increasingly critical. The persistent high PM2.5 levels in Patna underscore an intensifying crisis in the eastern Indo-Gangetic Plain.
Details remain unconfirmed regarding any new initiatives aimed at addressing the pollution crisis in Patna, but the urgency of the situation calls for immediate attention from local authorities and policymakers.
