Spell of heavy smog in Indian capital raises fears for COVID-19 patients

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Residents of the Indian capital are enduring one of the worst spells of air pollution in years, data released on Monday showed, raising the risks to city residents posed by the novel coronavirus, doctors said. | People walk along Rajpath near India Gate under heavy smog conditions in New Delhi. Image Credit: AFP

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Pollution in New Delhi had almost disappeared earlier this year, when the government imposed a nationwide lockdown to stop the coronavirus. But the curbs have been lifted and the pollution, and the virus, are back with a vengeance. | A residential area is seen shrouded in smog in New Delhi. Image Credit: Reuters

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Delhi's overall air quality index (AQI), which includes the concentration of PM2.5 particles as well as bigger pollutants, has stayed above 400, on a scale of 500, for five consecutive days, government data showed. The tiny PM2.5 particles can cause cardiovascular and respiratory diseases including lung cancer, and pose a particular risk for people with COVID 19. | India Gate is seen under heavy smog conditions in New Delhi. Image Credit: AFP

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R.V. Asokan, the honorary secretary-general of the Indian Medical Association that represents 350,000 doctors, told Reuters the air pollution made people more susceptible to coronavirus infection. "The PM2.5 particles break the nasal passage barrier, weaken the inner lining of lungs, facilitating the spread of the coronavirus infection," Asokan said. Vehicles ply on roads amid low visibility due to heavy smog in New Delhi. Image Credit: PTI

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Doctors and researchers around the world have also reported a link between pollution and deaths in patients whose lungs are weakened by the novel coronavirus. PM2.5 levels were 20 times the World Health Organization's safe limit on Monday, official data showed. | Traffic moves on a flyover along a residential area on a smoggy morning in New Delhi. Image Credit: Reuters

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The five days with an AQI above the 400 level is the longest spell of such heavy pollution in November since 2016. November is usually the worst month for pollution across north India as farmers burn off stubble in their fields and the cooler weather can trap the pollution. | People walk along a road near the Ghazipur landfill site amidst heavy smog in New Delhi. Image Credit: AFP

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Doctors in Delhi, which has reported a sharp increase in respiratory infections due to the pollution, are fearing a another jump after the Diwali festival on Sunday, which is celebrated with blizzards of smoky firecrackers, even though fireworks have been banned this year. | Birds fly over the North and South Block Central Secretariat government under heavy smog conditions in New Delhi. Image Credit: AFP

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India's main environment court, the National Green Tribunal, forbid the sale and use of firecrackers in the city of 20 million people, and neighbouring cities, from Monday to Dec. 1, but some people will inevitably ignore the order. | Commuters make their way along a road under heavy smog conditions near near the Indian parliament in New Delhi. Image Credit: AFP

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The court also told authorities to contain air pollution from all sources "in view of potential of aggravation of COVID-19". As well as the stubble burning, Delhi's pollution woes are compounded by factories, vehicles and rubbish burning. Image Credit: Reuters

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The neighbouring state of Punjab has recorded at least 50,000 crop waste fires this year, unchanged from a year ago, despite a campaign to encourage farmers to use other methods to clear stubble. | People walk along Rajpath near India Gate under heavy smog conditions in New Delhi. Image Credit: AFP

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