As Diwali approaches, Delhi's residents are facing another challenge: deteriorating air quality. On Friday, the city slipped further into the 'poor' AQI category, with several areas registering alarming levels. Anand Vihar and Wazirpur recorded AQIs exceeding 350, creating thick smog that has reduced visibility and cast a haze over the Delhi-NCR skyline.
According to the Central Pollution Control Board (CPCB), Delhi's overall AQI at 4 p.m. stood at 254, marking the fourth consecutive day of unhealthy air. The decline began on October 14 and has steadily worsened, raising concerns among health experts and city officials.
Pollution Across NCR
The air quality crisis is not confined to Delhi. Nearby Ghaziabad recorded a 'very poor' AQI of 306, making it the most polluted city in India on Friday. Noida and Gurugram also reported poor air, with AQIs of 278 and 266 respectively. Faridabad, by contrast, remained in the 'moderate' range at 105.
Within Delhi, five of the 38 monitoring stations reported 'very poor' air quality. Anand Vihar led the list at 382, followed by Wazirpur (351). Other areas, including Jahangirpuri, Bawana, and Siri Fort, also showed levels well above safe limits.
What's Driving the Pollution?
Data from the Decision Support System (DSS) shows that vehicle emissions contributed nearly 18% of the city's pollution on Friday. Meanwhile, stubble burning in Punjab, Haryana, and western Uttar Pradesh continues to blanket Delhi-NCR in smoke.
The Air Quality Early Warning System predicts that pollution will remain in the 'poor to very poor' range as winter approaches and atmospheric conditions trap pollutants closer to the ground.
Health Impact and Safety Measures
Pulmonologist Dr. Sharad Joshi warned that rising pollution poses serious risks, particularly for people with respiratory conditions such as asthma or COPD.
"AQI levels have risen sharply, making outdoor exposure hazardous for vulnerable groups. Wearing N95 masks and limiting outdoor activity are strongly recommended," Dr. Joshi said.
He also noted that even 'green crackers', though marketed as eco-friendly, still release pollutants that can affect sensitive individuals. Reducing vehicle usage, carpooling, and ensuring vehicles meet emission standards can help mitigate the impact.
Weather Conditions and Pollution Control
The India Meteorological Department (IMD) reported a maximum temperature of 32.6°C and a minimum of 18.4°C on Friday. Relative humidity dropped from 74% in the morning to 61% by evening. A misty morning is expected on Saturday, with temperatures ranging between 19°C and 33°C.
To curb dust, authorities have deployed truck-mounted water sprinklers along major roads in Delhi-NCR. Construction sites are also under monitoring to ensure compliance with Graded Response Action Plan (GRAP) measures.
Outlook
With Diwali festivities and firecrackers approaching, Delhi's air quality may deteriorate further. Experts urge citizens to take precautions, particularly those in heavily polluted areas like Anand Vihar and Wazirpur, while government measures aim to manage dust and emissions during the festival season.