Delhi Air Pollution
SC refuses to relax GRAP-4 restrictions unless AQI shows 'downward trend'
At 346, Delhi's air quality remains 'very poor'; likely to persist for 3 more days
SC asks CAQM to consider restarting physical classes in schools, colleges in Delhi-NCR
Delhi's air quality improves to 'poor', night temperature higher than normal
Delhi air quality fluctuates between Very Poor and Severe; AQI at 318