New delhi, Nov 19, 2025 — Delhi’s air pollution levels have once again reached dangerous levels, prompting authorities to warn that the National capital Region (NCR) may soon enter Stage 4 of the Graded Response Action Plan (GRAP). If triggered, Stage 4 would involve strict vehicle restrictions, heavy fines, and additional emergency measures to combat the hazardous air quality.

What is GRAP Stage 4?

The Graded Response Action Plan (GRAP) is a tiered pollution control framework implemented in Delhi-NCR to manage air quality during periods of extreme pollution. Stage 4, also called the “Severe Emergency” stage, is triggered when air quality indices remain critically high for prolonged periods, posing serious health risks to residents.

Key Measures Under Stage 4

1. Vehicle Restrictions

o Odd-even rule may be expanded or made stricter, limiting private vehicle use based on registration numbers.

o Only emergency, government, and essential service vehicles may be allowed unrestricted movement.

2. Heavy Fines for Violations

o Violators of vehicle restrictions will face substantial monetary penalties.

o Authorities may also enforce impounding of non-essential vehicles in extreme cases.

3. Industrial and Construction Activity Control

o Non-essential construction work may be halted.

o industries contributing to air pollution could be temporarily shut down or required to implement emission mitigation measures.

4. Public health Measures

o Schools may be closed for children to prevent exposure.

o Residents will be advised to avoid outdoor activities, especially vulnerable groups like children, the elderly, and people with respiratory conditions.

5. Enhanced Monitoring and Alerts

o air quality monitoring stations will provide real-time updates.

o Citizens will receive notifications and guidelines via apps, social media, and local authorities.

Why Stage 4 is Being Considered

· Rising pollution Levels: delhi has recently recorded PM2.5 and PM10 concentrations well above safe limits, with smog reducing visibility and triggering health warnings.

· Weather Conditions: Cold temperatures, low wind speed, and temperature inversion are trapping pollutants close to the ground, exacerbating air quality issues.

· Health Concerns: Doctors and health authorities have warned of respiratory distress, eye irritation, and cardiovascular risks due to prolonged exposure.

Public Advisory

Authorities are urging citizens to:

· Use public transport or carpool wherever possible

· Avoid burning garbage or crop residue

· Wear protective masks if outdoors

· Stay updated on real-time air quality alerts

Potential Impact

If Stage 4 is enforced:

· Daily commutes will be significantly affected due to vehicle restrictions.

· Residents may face fines and penalties for violating regulations.

· Schools and construction projects may be temporarily closed, and industrial operations could be disrupted.

· Emergency services will remain operational to ensure essential needs are met.

Conclusion

With air quality at critically hazardous levels, delhi NCR authorities are closely monitoring pollution trends and are prepared to implement Stage 4 GRAP measures if necessary. Residents are advised to follow guidelines, minimize outdoor exposure, and cooperate with enforcement authorities to mitigate the public health impact.

Disclaimer:

The views and opinions expressed in this article are those of the author and do not necessarily reflect the official policy or position of any agency, organization, employer, or company. All information provided is for general informational purposes only. While every effort has been made to ensure accuracy, we make no representations or warranties of any kind, express or implied, about the completeness, reliability, or suitability of the information contained herein. Readers are advised to verify facts and seek professional advice where necessary. Any reliance placed on such information is strictly at the reader’s own risk.