Delhi-NCR Under GRAP-IV as AQI Slips Into ‘Severe+’; Construction Banned, Offices to Operate at 50% Capacity

New Delhi: Authorities have imposed the strictest anti-pollution measures under Stage-IV of the Graded Action Response Plan (GRAP) across the Delhi-NCR after air quality levels deteriorated sharply and slipped into the ‘Severe+’ category on Saturday evening.

The emergency curbs were enforced by the Commission for Air Quality Management (CAQM) just hours after GRAP-III restrictions had come into effect, reflecting the rapid worsening of pollution levels across the region.

AQI Shows Sharp Deterioration

According to official data, Delhi’s Air Quality Index (AQI) worsened from 431 at around 4 pm to 441 by 6 pm, raising concerns that pollution levels could breach the ‘Severe+’ threshold.

Several areas reported even more alarming readings. Anand Vihar was enveloped in dense toxic smog, with AQI surging to 488, while India Gate and Kartavya Path recorded AQI levels of 407, both falling in the ‘severe’ category, as per the Central Pollution Control Board (CPCB).

The CAQM attributed the spike to slow wind speeds, a stable atmosphere, unfavourable meteorological conditions and poor dispersion of pollutants, causing emissions to accumulate rapidly.

GRAP-IV Invoked Across Entire NCR

In view of the deteriorating situation, the CAQM’s Sub-Committee on GRAP invoked all measures prescribed under Stage-IV, the highest level of restrictions, with immediate effect across the entire National Capital Region.

GRAP-IV is typically enforced during periods of extreme air pollution when urgent intervention is required to protect public health.

Key Restrictions Under GRAP-IV

One of the most significant measures includes a complete ban on all construction and demolition activities across Delhi-NCR.

Authorities have also ordered the shutdown of stone crushers, mining operations and associated activities, which are considered major contributors to dust and particulate pollution.

To reduce vehicular emissions, strict restrictions have been imposed on the movement of BS-III petrol and BS-IV diesel four-wheelers. These curbs will apply not only in Delhi but also in adjoining districts such as Gurugram, Faridabad, Ghaziabad and Gautam Buddha Nagar.

Schools Shift to Hybrid Mode

Educational institutions have been directed to shift to hybrid learning modes for classes up to Class 5, limiting physical attendance to reduce children’s exposure to hazardous air.

Schools have been advised to continue academic activities through a mix of online and offline classes, while avoiding outdoor activities.

Offices to Operate at 50% Capacity

In a major step to curb vehicular movement, the government has ordered all government offices and private establishments to operate at 50 per cent capacity, with the remaining staff working from home.

The directive has been issued under Section 5 of the Environment (Protection) Act, 1986, and applies across the NCR.

GRAP-IV Restrictions at a Glance

• Classes up to Class 5 to operate in hybrid mode
• Complete ban on construction and demolition activities
• Shutdown of stone crushers across NCR
• Suspension of all mining and related activities
• Ban on plying of BS-III petrol and BS-IV diesel four-wheelers
• Vehicle restrictions applicable in Delhi, Gurugram, Faridabad, Ghaziabad and Gautam Buddha Nagar
• Offices to function at 50% capacity, remaining staff to work from home

These measures come in addition to restrictions already in force under GRAP Stages I, II and III.

Enforcement and Monitoring Intensified

The CAQM has directed pollution control boards, enforcement agencies and civic bodies to escalate preventive and enforcement measures. Officials have been instructed to intensify monitoring, penalise violations and ensure strict compliance with GRAP-IV provisions.

Authorities said coordinated action across agencies is crucial to prevent any further deterioration in air quality.

Health Advisory Issued

Residents have been advised to limit outdoor activities, especially during early morning and late evening hours, and to follow advisories issued by health authorities.

Health Risks Associated With Severe AQI

Prolonged exposure to severe air pollution can lead to:

• Aggravation of asthma and respiratory disorders
• Reduced lung function
• Increased cardiovascular stress
• Eye, throat and nasal irritation

Children, the elderly and people with pre-existing health conditions are particularly vulnerable.

Authorities said the situation is being closely monitored and further steps may be taken if pollution levels remain elevated in the coming days.

Follow us on Twitter, Google News, and Instagram and like us on Facebook for the latest updates and exciting stories.