Delhi Air Pollution Worsens: GRAP-III Measures Enforced as Air Quality Slips into ‘Severe’ Category
Delhi’s long-running battle with air pollution intensified once again as air quality levels deteriorated sharply, pushing the national capital into the ‘severe’ category and prompting authorities to implement Stage III of the Graded Response Action Plan (GRAP-III). The move comes amid rising particulate matter levels, unfavourable meteorological conditions, and a seasonal spike in pollution sources, triggering renewed concern over public health and daily life in the city.
According to air quality monitoring agencies, Delhi’s Air Quality Index (AQI) crossed the threshold for ‘severe’ pollution, with concentrations of PM2.5 and PM10 far exceeding safe limits prescribed by national standards. Dense smog enveloped several parts of the city, reducing visibility and leading to widespread complaints of eye irritation, breathing difficulty, headaches, and throat discomfort, particularly among children, the elderly, and those with pre-existing respiratory conditions.
What Triggered GRAP-III?
The decision to enforce GRAP-III was taken after continuous monitoring showed a sustained rise in pollution levels, coupled with weather conditions that restrict the dispersion of pollutants. Low wind speed, high moisture content, and falling temperatures during winter create an atmospheric trap, allowing pollutants from vehicles, construction activities, industrial emissions, and biomass burning to accumulate close to the ground.
Authorities noted that despite the implementation of earlier preventive steps under GRAP-I and GRAP-II, pollution levels continued to climb, making stricter curbs unavoidable. GRAP-III is typically enforced when the AQI enters the ‘severe’ category or is projected to remain there for several days.
Key Restrictions Under GRAP-III
With GRAP-III in force, a series of tighter restrictions have been activated across Delhi and the National Capital Region (NCR) to curb emissions and limit further deterioration in air quality.
One of the major steps includes a ban on non-essential construction and demolition activities. Projects involving earthwork, excavation, and material handling have been ordered to stop, except for critical infrastructure such as hospitals, railways, metro services, and national security-related works. Construction sites that are permitted to operate must strictly follow dust-control norms, including covering materials, using water sprinklers, and deploying anti-smog measures.
Industries running on coal or other high-emission fuels have also been directed to shut down or switch to cleaner alternatives wherever possible. Hot mix plants, brick kilns, and stone crushers in and around Delhi face strict restrictions, as these units are known to contribute significantly to particulate pollution.
The use of diesel generator sets has been prohibited, except for emergency and essential services. Authorities have urged commercial establishments, housing societies, and offices to rely on grid power instead of backup generators to reduce emissions during peak pollution hours.
Impact on Vehicles and Traffic
Vehicular emissions remain one of the biggest contributors to Delhi’s air pollution, and GRAP-III brings renewed focus on controlling traffic-related pollution. Traffic police and enforcement agencies have intensified checks to identify visibly polluting vehicles. Strict action, including fines and impounding of vehicles, has been announced for violators.
Citizens have been strongly advised to limit the use of private vehicles and opt for public transport, carpooling, or work-from-home arrangements wherever feasible. While no blanket ban on specific categories of vehicles has been imposed under GRAP-III, authorities have hinted that stricter measures could follow if air quality continues to worsen.
Public transport agencies have been instructed to ensure maximum availability of buses and metro services to discourage the use of personal vehicles. Traffic congestion during peak hours, however, remains a challenge, especially as visibility issues caused by smog affect driving conditions.
Schools, Health Advisory, and Daily Life
As pollution levels reached alarming levels, health authorities issued advisories urging residents to take precautions. People have been advised to avoid outdoor physical activity, especially in the early morning and late evening hours when pollution levels tend to spike. Wearing masks, keeping windows closed, and using air purifiers indoors have been recommended as precautionary steps.
Schools have been asked to avoid outdoor activities, including sports and morning assemblies, to protect children from prolonged exposure to polluted air. In previous years, similar conditions have led to temporary school closures or a shift to online classes, and parents remain anxious about the possibility of further disruptions.
Hospitals across Delhi have reported an uptick in patients suffering from respiratory ailments, asthma attacks, and other pollution-related health issues. Doctors have warned that prolonged exposure to ‘severe’ air quality can have long-term health consequences, including reduced lung function and increased risk of cardiovascular diseases.
Causes Behind the Seasonal Spike
Experts point out that Delhi’s winter pollution crisis is the result of a complex mix of local and regional factors. Vehicular emissions, industrial pollution, road dust, and construction activities form the base load of pollution throughout the year. During winter, these are compounded by stubble burning in neighbouring states, firecracker residue from festivals, and domestic biomass burning.
Meteorological conditions play a decisive role, as temperature inversion and calm winds prevent pollutants from dispersing. This makes even moderate emissions accumulate rapidly, pushing AQI levels into hazardous territory within a short span of time.
What Lies Ahead?
Authorities have warned that if air quality remains in the ‘severe’ category or worsens further, even more stringent measures under GRAP-IV could be rolled out. These could include restrictions on vehicle movement, closure of schools, and additional curbs on industrial activity.
Environmental experts stress that while GRAP measures help manage pollution spikes, long-term solutions require sustained efforts, including cleaner transport systems, better urban planning, reduced dependence on fossil fuels, and coordinated action across states in the NCR.
For now, residents of Delhi are bracing for another difficult phase as winter pollution tightens its grip. The implementation of GRAP-III underscores the seriousness of the situation, highlighting once again the urgent need for both immediate action and long-term strategies to ensure cleaner air for the capital.
