Delhi-NCR air quality worsens, GRAP stage 4 curbs invoked due to sharp rise in pollutants, meteorological conditions.

Get latest articles and stories on India at LatestLY. The Centre's panel on Delhi-NCR's air quality on Wednesday invoked curbs under stage 4 of the Graded Response Action Plan (GRAP) amid a sharp dip in air quality due to unfavourable meteorological conditions, according to an official order. India News | GRAP 4 Curbs Invoked in Delhi-NCR Amid Sharp Dip in Air Quality.

GRAP enforces four stages of air quality based on the AQI: Stage I (Poor, AQI 201-300), Stage II (Very Poor, AQI 301-400), Stage III (Severe, AQI 401-450), and Stage IV (Severe Plus, AQI above 450).

Delhi-NCR's air quality panel has lifted Stage 3 restrictions due to improved air pollution levels. Stage 3 restrictions included measures such as construction bans and limitations on vehicle usage.