New Delhi: For the first time in 50 days, Delhi residents experienced a significant respite from hazardous air pollution as the capital’s Air Quality Index (AQI) dipped to the ‘moderate’ category on Wednesday. The 24-hour average AQI stood at 178 by 4 PM, a sharp decline from 268 on Tuesday, marking a much-needed improvement in the city’s air quality.
This improvement comes after prolonged periods of choking pollution that had enveloped the city in a toxic haze. The last time Delhi recorded a ‘moderate’ AQI was on October 15, with a reading of 198, before it quickly deteriorated into the ‘poor’ category the following day, as per Central Pollution Control Board (CPCB) data.
Weather Plays Savior as Strong Winds Clear the Air
According to the India Meteorological Department (IMD), strong winds began sweeping through the city on Wednesday and are expected to persist until December 7. Following this, a new western disturbance could bring moderate fog starting December 8.
Out of 38 air quality monitoring stations across the city, only the Sri Aurobindo Marg station recorded ‘very poor’ air quality on Wednesday, while eight stations reported ‘poor’ air. The majority of stations indicated ‘moderate’ air quality, giving a glimmer of hope to Delhiites battling the seasonal pollution crisis.
Air Quality Index Explained
- Good (0-50): Minimal health risks
- Satisfactory (51-100): Minor respiratory discomfort for sensitive groups
- Moderate (101-200): Possible discomfort for sensitive groups
- Poor (201-300): Health risks for vulnerable populations
- Very Poor (301-400): Significant health impacts
- Severe (401-500): Serious health risks even for healthy individuals
Warmer Days and Fog Ahead
The IMD reported that Delhi’s daytime temperature reached 28°C on Wednesday, three degrees above the seasonal norm, while the minimum temperature settled at 12.5°C, 2.5 degrees higher than average. Humidity levels ranged from 44% to 66%. Thursday is expected to bring foggy conditions with a maximum temperature of 26°C and a minimum of 10°C.
A Step Towards Normalcy
The improvement in air quality coincides with a significant reduction in stubble burning by farmers, a key contributor to the capital’s winter pollution woes. With cleaner air, the city is poised to resume full-capacity operations in schools and offices, boosting optimism for sustained improvements.
Delhi’s pollution levels remain a persistent challenge, but Wednesday’s reprieve offers a beacon of hope for a cleaner and healthier future for the city’s residents.
