Delhi's air quality improved slightly on Tuesday. Wind speed helped clear some pollution. The AQI shifted from 'severe' to 'very poor'. GRAP-IV restrictions remained in place. Schools continued hybrid learning.

Without being “satisfied that there is a consistent downward trend of AQI, we cannot permit the Commission to go down to stage 3 or stage 2,” the Supreme Court bench said on GRAP measures.

The Supreme Court on Monday censured the AAP government and the Delhi police for a "serious lapse" on their part in the strict implementation of GRAP-IV measures and directed the Commission for Air Quality Management to take action against the erring officials.

Delhi Police has intensified security checks at the borders to ensure compliance with anti-pollution measures, following a Supreme Court censure. Coordinating with various departments, police are issuing challans and impounding non-compliant vehicles.

SC raps authorities for poor monitoring of GRAP IV restrictions; directs states to use labour cess to pay subsistence for affected labourers and daily wagers

Last week, GRAP-IV was imposed in the national capital after the Air Quality Index (AQI) crossed the 450 mark, and the apex court had said that the curbs can't be eased without its approval.

The Supreme Court has urged the Commission for Air Quality Management to consider easing restrictions for educational institutions under the harsh GRAP-IV norms. Acknowledging student disadvantages, the court emphasized pressing welfare measures for affected communities,

The AQI in Delhi remained in the severe category from Monday to Wednesday last week and thereafter witnessed slight improvement on Thursday and Friday. However, it deteriorated to the severe category on Saturday.

The Supreme Court is set to review on Monday whether to continue emergency measures under Stage 4 of the Graded Response Action Plan (GRAP) to address Delhi's air pollution crisis.

Delhi woke up to smog and 'very poor' air quality on Monday morning, with AQI in several areas exceeding 300. While GRAP IV restrictions remain in effect, authorities are set to review them, considering stubble burning and local transport as major pollution contributors over the weekend.

Experts said even though winds were predominantly calm on Saturday, they picked up late in the evening, with similarly strong winds recorded on Sunday.