Table of Contents
- Introduction
- Key Measures and Restrictions
- Air Quality Index (AQI) and Triggering of GRAP Stage 4
- Rationale Behind GRAP Stage 4
- Implementation and Enforcement
- Citizen Participation
- Conclusion
Understanding GRAP Stage 4 in Delhi: A Technical and Detailed Overview
In response to the alarming levels of air pollution in Delhi-NCR, the Commission for Air Quality Management (CAQM) has recently imposed GRAP Stage 4 measures. This stage, also known as “Severe Plus”, is the most stringent set of actions aimed at curbing pollution and protecting public health. Let’s delve deeper into the specifics of GRAP Stage 4 and its implications.
Key Measures and Restrictions
Ban on Truck Entry
- Restricted Entry: Only trucks carrying essential goods or providing essential services are allowed to enter Delhi. This includes trucks running on LNG, CNG, electric power, and BS-VI diesel.
- Prohibition for Others: Trucks registered outside Delhi, except those carrying essential commodities, are prohibited from entering the city. This measure aims to reduce vehicular emissions, which are a major source of air pollution.
Construction Halt
- Suspension of Activities: All construction activities, including public infrastructure projects like highways, roads, flyovers, and power transmission lines, are temporarily suspended. This is to reduce dust pollution, which significantly contributes to the poor air quality.
Schools and Online Classes
- Closure for Younger Students: Physical classes for students up to Class 9 and Class 11 are discontinued, with schools shifting to online learning platforms.
- Continuing Education for Seniors: Classes 10 and 12 continue with physical attendance to minimize disruption during crucial academic periods.
Work from Home
- Government and Private Sector: Offices in the National Capital Region (NCR) are encouraged to operate at 50% capacity, with the rest of the staff working from home. This reduces the number of vehicles on the road.
- Central Government Employees: Advised to work from home to further decrease traffic congestion and emissions.
Public Health Advisory
- Protecting Vulnerable Populations: Citizens, especially children, the elderly, and those with respiratory or cardiovascular conditions, are advised to stay indoors and minimize outdoor activities. This advisory aims to protect public health during periods of severe pollution.
Air Quality Index (AQI) and Triggering of GRAP Stage 4
GRAP Stage 4 is triggered when the daily average Air Quality Index (AQI) exceeds 450, indicating severe air pollution. On November 17, 2024, Delhi’s AQI reached 457, prompting the CAQM to implement these stringent measures. The AQI scale ranges from 0 to 500, with higher values indicating more severe levels of pollution. An AQI above 450 falls into the “Severe Plus” category, necessitating immediate and comprehensive action.
Rationale Behind GRAP Stage 4
The primary goal of GRAP Stage 4 is to reduce the sources of air pollution that contribute to the severe air quality in Delhi-NCR. This includes vehicular emissions, industrial activities, construction dust, and biomass burning. By restricting truck traffic, halting construction activities, and promoting remote work and online learning, the CAQM aims to lower pollution levels and improve air quality. These measures are designed to target multiple sources of pollution simultaneously, ensuring a more effective response to the air quality crisis.
Implementation and Enforcement
The CAQM has urged state governments and local authorities to ensure strict enforcement of the GRAP Stage 4 measures. This includes monitoring compliance with truck entry restrictions, construction halts, and public health advisories. Local authorities are tasked with conducting regular inspections and taking action against violators. The CAQM also recommends that state governments consider additional measures such as closing colleges, restricting non-essential commercial activities, and implementing odd-even vehicle rules to further reduce pollution. These supplementary measures aim to support the primary restrictions and enhance their effectiveness.
Citizen Participation
The success of GRAP Stage 4 relies heavily on the cooperation and participation of citizens. Residents are encouraged to follow the guidelines, limit outdoor activities, and support the implementation of pollution control measures. Public awareness campaigns are conducted to educate citizens about the importance of these measures and how they can contribute to improving air quality. By working together, the community can help reduce pollution levels and protect public health.
Conclusion
GRAP Stage 4 represents a critical step in addressing the severe air pollution crisis in Delhi-NCR. Through a combination of stringent measures and public cooperation, the CAQM aims to mitigate pollution and safeguard the health of residents. As the region continues to battle air pollution, the effectiveness of these measures will be closely monitored and adjusted as needed. The implementation of GRAP Stage 4 highlights the urgent need for comprehensive and coordinated action to address air quality issues and protect the well-being of the population.