Supreme Court reluctant to shut schools or shift classes online amid Delhi's worsening air quality

Delhi’s Air Quality Index, or AQI, converts pollution measurements into categories that show how serious the air quality is. As the category worsens, the public health concern increases. The article identifies “poor” and “very poor” air as increasingly common during Delhi’s winter, while “severe” is the worst grade on the government’s pollution scale.

In this episode, Delhi entered the severe category at 6am on Friday. The official AQI was 391 at 10am, based on readings averaged over the previous 24 hours. Hourly readings gave a more alarming picture: all 59 operational stations recorded severe air every hour from 8pm Thursday.

The classification matters because it guides government action under GRAP. The court said the key challenge was stopping air from slipping into “severe” and “severe plus” levels. The article does not list every AQI band’s exact threshold, but it presents these labels as a graded warning system for worsening pollution.

The episode was serious because Delhi’s pollution reached the severe category and stayed there in hourly readings. At 10am Friday, all 59 monitoring stations recorded severe air when each hour was assessed as if it lasted for a full day. This showed widespread pollution rather than an isolated reading.

The official AQI was 391 at 10am. It averaged readings from the previous 24 hours, smoothing out short-term peaks and lower readings. The hourly index was 453, which was 62 points higher. On the 39 stations operating during the previous Diwali, the hourly figure was 407. Newer stations with comparatively lower readings pulled down the overall average.

The comparison shows why averaging and hourly analysis can tell different stories. The official figure indicated severe conditions, but the hourly measure revealed a sharper immediate episode. The court was concerned that AQI could remain above 300 from November through the next several months.

The Supreme Court did not want to impose broad restrictions on children attending school despite Delhi’s severe air. The bench said physical classrooms offer better-quality education because children receive direct interaction. It also said decisions must consider the consequences of online learning, not simply assume that internet access solves the problem.

The court highlighted unequal access to devices, reliable connectivity and suitable study spaces at home. A blanket move online could therefore separate privileged students from underprivileged students. The judges described this risk as creating a divide between the “haves and have-nots.” Their position was reluctance, not a rejection of every possible protective measure.

The court said it would prefer the expert recommendations behind GRAP. Under that framework, hybrid classes are prescribed at higher pollution stages, while further restrictions apply at Stage IV. The court may still consider new measures if credible medical research or expert guidance supports them, but it rejected anecdotal opinions as a basis for changing the framework.

Moving every class online could create a new barrier instead of providing equal protection. Students need more than a digital timetable: they may need a device, dependable internet, electricity and a suitable place to study. Without those basics, attendance and learning quality can suffer.

The Supreme Court specifically warned that a blanket online shift could deepen existing inequalities. Privileged children may have devices, fast connections and supportive home environments. Other students may share equipment, face unreliable connectivity or lack an adequate learning space. The court said this could divide children into “haves and have-nots.”

That concern shaped the bench’s reluctance to close schools. It observed that online access and the quality of education delivered online remained questionable, while physical classroom interaction would certainly be better. The court therefore preferred minimal restrictions and reliance on GRAP’s staged measures rather than an automatic, citywide move online whenever air quality worsened.

The Graded Response Action Plan, or GRAP, is a pollution-control framework that links different levels of air pollution to progressively stronger measures. Its purpose is to provide a prepared response instead of relying on improvised decisions during every pollution episode. The court said it would rely on the expert recommendations underlying this plan.

The article gives education as a clear example. Under the revised framework, hybrid classes are among the measures prescribed at Stage III. At Stage IV, there are further restrictions on educational institutions. This means the response changes with the pollution stage, rather than requiring schools to close automatically whenever air quality deteriorates.

The Supreme Court said CAQM’s recommendations reflected expert views, including medical professionals. It wanted credible research before departing from that framework. The article says Delhi’s immediate challenge was to prevent air from moving from poor or very poor conditions into severe and severe plus categories, which could activate stronger GRAP measures.

The court was examining whether age-based school restrictions rested on sound medical evidence. It questioned claims that younger children were more vulnerable to polluted air than older students. Before changing rules, the bench wanted to know whether medical research actually supported that distinction and whether younger children’s lungs were demonstrably less equipped to handle polluted air.

During the hearing, it asked, “Have you taken a paediatrician’s opinion? Any credible research?” The judges said no medically established or corroborated opinions were before them. They also said they were not interested in “anecdotal research” or persuasive independent opinions.

The court’s standard was well-researched, peer-reviewed evidence. It said it would rely on CAQM’s expert-backed recommendations, which included medical views, unless credible research justified a departure. This approach matters because school restrictions affect millions of children and can also worsen educational inequality. The article does not report a final medical finding about age-related vulnerability.

Environmental health decisions can affect schools, workers and entire cities. Authorities therefore need evidence that is tested, measurable and applicable beyond one personal experience. Expert research, medical advice and monitoring data help show how serious a risk is and whether a proposed measure is justified.

The article contrasts this method with anecdotes and independent opinions. The Supreme Court said it would rely on CAQM recommendations and credible, peer-reviewed research. GRAP adds a predefined structure: pollution stages trigger corresponding measures, including hybrid classes at Stage III and further restrictions at Stage IV. Monitoring stations provide the data used to assess changing conditions.

This approach does not remove uncertainty, but it makes decisions more consistent and reviewable. In Delhi, the official AQI averaged 24 hours, while hourly readings exposed more severe conditions. The court wanted such evidence interpreted through expert frameworks before imposing school restrictions. It also wanted to avoid measures that might protect some children while widening educational inequality for others.