(Image source from: India.com)

The smog in Delhi and its surroundings remained thick on Tuesday morning, with the air quality nearing a score of 500. According to the SAFAR system, Delhi's overall Air Quality Index was 494 at 6 am, placing it in the 'severe plus' category. Most of the 35 monitoring stations in the capital recorded an AQI of 500, with the lowest being 480 at NSIT Dwarka. The India Meteorological Department also issued an 'orange' alert for dense fog, which led to delays and cancellations of trains and flights due to poor visibility caused by the toxic smog. Airlines, such as IndiGo, advised passengers to plan accordingly and stay updated on the flight status due to the adverse travel conditions.

The government is discussing about the implementation of GRAP-4 measures in Delhi, including a ban on certain vehicles, restrictions on office capacity, and the closure of schools. It also mentions that schools across Delhi-NCR have been shut due to severe air pollution, and that universities and colleges have shifted to online classes. The school district has instructed schools to switch to online learning. Similarly, the administration in Gautam Buddh Nagar has told schools to halt all in-person classes. Additionally, the Supreme Court has directed Delhi and the surrounding states to strictly enforce the GRAP 4 measures and inquired about the delay in implementing them.