As Delhi grapples with worsening air quality, schools in the Indian capital have been directed to conduct hybrid classes for primary students. This decision comes as air pollution escalates to alarming 'severe' levels, prompting concerns about the health and safety of children and the general public.

Authorities introduced stricter anti-pollution measures on Tuesday, including restrictions on the movement of goods carriers in Delhi and its suburbs. The most recent data indicates that PM2.5 levels soared to 438 micrograms per cubic meter, far exceeding the World Health Organisation's (WHO) safe limit of 15 micrograms. Such high concentrations of fine particulate matter can pose significant health risks, particularly for those with pre-existing health conditions.

In response to the crisis, doctors have advised citizens, particularly vulnerable populations like children and the elderly, to avoid outdoor activities unless absolutely necessary and to wear protective masks when venturing outside.

Air quality issues in Delhi often stem from multiple factors, including low wind speeds, industrial emissions, vehicular exhaust, dropping temperatures, and the seasonal agricultural practice of burning crop stubble in surrounding states. Additionally, the Delhi government has activated the Graded Response Action Plan (GRAP), which is a set of measures aimed at decreasing pollution levels.

Stage three of these measures involves a ban on various construction-related activities and vehicles transporting materials that may generate dust. Despite these actions, the deteriorating air quality has sparked public outrage, leading to demonstrations and political disagreements.

On Tuesday, Saurabh Bhardwaj from the opposition Aam Aadmi Party (AAP) accused the Bharatiya Janata Party (BJP)-led Delhi government of manipulating air quality data and failing to safeguard public health, while the Chief Minister defended the government's measures and transparency regarding air quality data.

This ongoing pollution crisis emphasizes the urgency for effective solutions to the ongoing air quality problems faced by Delhi, especially during the winter months when air quality typically worsens.