NEW DELHI: India’s top court intervened on Friday to request policing measures in New Delhi to contain severe air pollution that over the past week has led to a surge in hospital admissions for respiratory diseases.

Residents of the Indian capital again woke to a thick layer of toxic smog, with an overall Air Quality Index reading of 373, or “very poor,” according to the Central Pollution Control Board.

While conditions have slightly improved since Monday, when a medical emergency was declared with pollution reaching the “severe plus” AQI score of 484, the prolonged crisis prompted the Supreme Court to order the central and local governments to introduce new measures to contain it.

The court said during Friday’s hearing that it was “not satisfied” with the Delhi administration and police efforts to address the pollution and ordered the authorities to “ensure that check posts are immediately set up at all 113 entry points (to the capital)” to stop trucks and commercial vehicles from entering the city.

The move follows the court’s order earlier this week to suspend all construction work in the whole of New Delhi and the National Capital Region.

“It is a constitutional obligation of the central government and the states to ensure that citizens live in a pollution-free atmosphere,” the court said.

As toxic smog has persisted for over a week, Delhi authorities have shut all schools and moved classes online, while half of the government employees have been allowed to work from home.

The continuing crisis is already reflected in a surge of hospitalizations for respiratory disease.

“The cases related to lungs and respiratory problems have significantly risen,” Dr. Nikhil Modi, pulmonologist at Indraprastha Apollo Hospital in New Delhi, told Arab News, adding that the patients coming to the hospital with respiratory issues are “two to three times the normal” amount.

“Especially for those who already have underlying lung disease, the problem can be significant, and if they develop a secondary pneumonia or an infection, then they require emergency admission,” Modi said.

Toxic smog arrives in New Delhi every winter as temperatures drop, trapping toxic pollutants from tens of millions of cars, as well as construction sites, factory emissions, and waste burning. It is aggravated by farmland fires in the country’s northwest and southeast, where farmers clear stubble to prepare fields to plant wheat.