Written by 
In response to worsening air quality in Delhi-NCR, the Commission for Air Quality Management (CAQM) has invoked Stage-IV of the Graded Response Action Plan (GRAP), effective from 08:00 AM on November 18, 2024. The decision follows a significant rise in Delhi’s Air Quality Index (AQI), which reached 457 at 7 PM on November 17, indicating ‘Severe+’ pollution levels.
Rising Air Quality Index triggers emergency action
As per the Central Pollution Control Board (CPCB), Delhi’s AQI recorded 441 at 4 PM on November 17, climbing further to 457 by 7 PM. The rapid deterioration in air quality has been attributed to unfavorable meteorological conditions, such as low wind speeds, which have led to a spike in pollutants.
Stage-IV GRAP measures implemented
To address the escalating air pollution, the CAQM has implemented the stringent measures outlined under Stage-IV of the GRAP, which targets ‘Severe+’ air quality (AQI > 450). These measures are designed to prevent further deterioration of air quality in the region and will complement the actions already in place under Stage-I, Stage-II, and Stage-III.
Key actions under Stage-IV of GRAP
Effective from 08:00 AM on November 18, 2024, the following actions will be enforced:
- Entry of non-essential trucks into Delhi will be stopped, except for those carrying essential commodities or providing essential services.
- Only LNG, CNG, electric, and BS-VI diesel trucks will be allowed entry.
Ban on polluting vehicles:
- The entry of Light Commercial Vehicles (LCVs) from outside Delhi, except for electric, CNG, or BS-VI diesel models, will be prohibited unless they are delivering essential goods or services.
- A ban will be enforced on the operation of Delhi-registered BS-IV and below diesel-operated Medium Goods Vehicles (MGVs) and Heavy Goods Vehicles (HGVs), except for essential services.
Ban on construction and demolition (C&D) activities:
- C&D activities, including those for public projects like highways, flyovers, and power transmission, will be suspended, in line with Stage-III measures.
School closures:
State governments and the Delhi Government (GNCTD) are advised to consider discontinuing physical classes for grades VI-IX and XI, opting for online lessons instead.
Work-from-home measures:
State and local governments are urged to enforce 50% work-from-home policies for municipal, public, and private offices. The Central Government may also consider similar measures for its employees.
Additional Emergency Measures:
The closure of non-essential commercial activities, colleges, and educational institutions, as well as the possibility of implementing odd-even vehicle regulations, may be considered by the state governments.
Appeal to citizens for cooperation
The CAQM has also urged residents of Delhi-NCR to support the effective implementation of GRAP measures. Citizens are advised to:
Limit outdoor activities, especially for children, the elderly, and individuals with respiratory or cardiovascular conditions.
Follow guidelines outlined in the Citizen Charter under GRAP for reducing pollution and maintaining air quality in the region.