On Wednesday morning, Delhi's air quality plunged into the "very poor" category, with a dense layer of smog covering the city. The Air Quality Index (AQI) rose from 316 on Tuesday evening to 361 on Wednesday. Several areas in the capital region reported AQI levels exceeding 300.
Aya Nagar recorded the worst air quality in the city on Wednesday morning, with an AQI of 417, falling under the severe category, according to data from the Central Pollution Control Board (CPCB). Other areas with AQI values above 300 include Anand Vihar (396), Jahangirpuri (389), ITO (378), and IGI Airport (368). Delhi's 24-hour average AQI was reported at 361 at 8 am on Tuesday.
Additionally, visibility in several parts of Delhi was significantly reduced due to dense fog, with near-zero visibility recorded at Indira Gandhi International Airport.
Images from various parts of the city revealed near-zero visibility, with vehicles using fog lights on the roads. The Indira Gandhi International Airport issued an advisory, warning that flights not equipped with CAT III systems may be affected by the fog.
Major factor contributing to the dense fog is the high concentration of smoke in the atmosphere. This smoke, along with dust particles, acts as nucleation sites for water vapor, promoting condensation. This process leads to rapid fog formation, significantly reducing visibility, especially at ground level.
One of the primary factors contributing to this dense fog is the presence of densely concentrated smoke in the atmosphere. This smoke, combined with dust particles, serves as nucleation sites for water vapour, facilitating heterogeneous condensation. This process allows fog to quickly condense in the region, reducing visibility drastically, especially at ground level.
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