Authorities in Pakistan ordered schoolchildren in the smog-smothered city of Lahore to wear masks during lessons starting Thursday, an effort to protect against hazardous levels of polluted air.
The Punjab state government issued the mandate after the High Court declared a "smog emergency" and asked officials to take steps to help mitigate health problems.
On Wednesday night, private and public schools sent out messages to parents via text and WhatsApp, stating that children must come to school wearing masks for a month.
"Parents whose children suffer from asthma or eye problems often stop sending their children to school. So this is a good step by the government," said Madeeha Hassan, a secondary school teacher in the city.
Student Afshan Maqsood, 15, has had two bouts of throat infections since the beginning of October when the smog arrived.
Wearing a mask is "better than being sick", she said.
Globally, South Asia is the region worst hit by air pollution, according to the Air Quality Life Index report from the University of Chicago.
Pakistan is the fourth most polluted country -- behind Bangladesh, India and Nepal -- in terms of annualized, population-weighted averages of fine particulate matter, which is linked to lung disease, heart disease, strokes and cancer.
Air pollution has worsened in Pakistan in recent years, as a mixture of low-grade diesel fumes, smoke from seasonal crop burn off and colder winter temperatures coalesce into stagnant clouds of smog.
Lahore, the country's second-most populous metropolis and close to the border with India, is consistently ranked in the top 10 cities globally with the worst air quality by monitoring firm IQAir.
On Thursday it was ranked number two, second only to New Delhi.
"We have the dirtiest diesel and fuel in the world," Ahmad Rafay Alam, an environmental lawyer, told AFP, calling smog "a total failure of governance".
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
For healthy adults, a sore or scratchy throat after a heavy air-pollution day is usually temporary and improves in days with reduced exposure and simple self-care. Here are some easy hacks.
An air purifier removes airborne contaminants, while a humidifier restores moisture. Understanding their distinct roles, and when to use one, both or none, can help you breathe easier and stay healthier through the season.
The Air Quality Index (AQI) in Delhi and its National Capital Region on Thursday morning remained under the "very poor" category with the Graded Response Action Plan (GRAP) II norms already in place.
Delhi's much-awaited artificial rain experiment, initially postponed in July continues to be on hold, with no green light yet for the trial that was expected to take place after Diwali.
Existing evidence indicates that long-term exposures to toxic levels of air pollution cause lies in oxidative stress: a condition where free radicals produced by poisons kill cells, proteins, and DNA.
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