NEW DELHI: The national capital witnessed a significant enhancement in its atmospheric conditions following a bout of winter rainfall on Sunday. According to data released by the Central Pollution Control Board (CPCB), the Air Quality Index (AQI) was recorded at 150 at 8 am, categorizing it within the "moderate" range. This development brought much-needed respite from the persistent pollution that had been plaguing the city.
Weather Conditions and Forecast
The India Meteorological Department (IMD) has forecast partly cloudy skies over the Delhi-National Capital Region (NCR) in the coming days. Surface winds are expected to reach speeds of 10-15 kilometers per hour, with shallow fog likely during night hours. The current temperature stands at 7.4 degrees Celsius, contributing to the chilly winter weather. The rainfall, while adding to the cold, played a crucial role in washing away pollutants and improving visibility.
Revocation of GRAP Stage III
In response to the improved air quality and favorable meteorological predictions, the Commission for Air Quality Management (CAQM) has revoked Stage III of the Graded Response Action Plan (GRAP) across Delhi-NCR with immediate effect from January 22. The Sub-Committee on GRAP under the CAQM made this decision, citing the positive trends in air quality measurements and forecast models.
Continued Vigilance Urged
Despite the revocation of Stage III measures, authorities have emphasized the need for continued public cooperation. Citizens are urged to adhere to the citizen charter under GRAP Stages II and I. This caution is advised due to the ongoing winter season and the potential for fluctuating weather conditions, which could impact AQI stability. Maintaining these measures is essential to ensure that air quality remains within acceptable limits.
Understanding AQI Classifications
To provide context, the Air Quality Index classification system defines various ranges: a reading between 0 and 50 is considered 'good', 51 to 100 'satisfactory', 101 to 200 'moderate', 201 to 300 'poor', 301 to 400 'very poor', and 401 to 500 'severe'. Delhi's current AQI of 150 places it squarely in the moderate category, indicating a noticeable improvement from previous levels.
The improvement in air quality has also enhanced visibility across the region, allowing iconic landmarks like the Taj Mahal in Agra to be seen more clearly, offering picturesque views to visitors and residents alike. This positive change underscores the impact of meteorological factors on urban pollution levels and highlights the importance of sustained efforts in pollution control and public awareness.
