Delhi's air quality has reached hazardous levels, prompting GRAP 4 restrictions. With AQI surpassing 450, health risks are rising, leading to school closures, work-from-home mandates, and vehicle restrictions. Despite strong winds, pollution remains severe, especially in Mundka. The Delhi government is also considering the odd-even scheme for vehicles. Hospitals are overwhelmed with patients suffering from respiratory problems, highlighting a major public health crisis.