Bird-watchers and avian experts lament decline in the number of species of birds due to concretisation, deforestation and water scarcity in places like Okhla Bird Sanctuary; however, Sultanpur National Park stands as a beacon of hope

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An orange alert was issued by the Met department across the city as visibility in many parts remained around 50 metres

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Dr Chandrakant Lahariya, a public health & policy expert, says there is no need to panic over the emergence of a new virus from China, but urges people to ensure healthy diet and exercise to keep infections at bay

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Women-led NGO, Mahila Housing Trust, trains AQI ambassadors to make women construction workers aware of the hazards of pollution

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According to its data, the November month average AQI was observed at 373 this year, while it was 380 in 2021 and 374 in 2016. There were nine days in the month when the air quality was in “severe” category. It was “very poor” for 17 days and “poor” for four days

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The city recorded an AQI of 258 at 9:05 am, improving from 365 at 8 am on Tuesday

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Delhi’s air quality index (AQI) stood at 365 at 8 am on Tuesday, improving from 395 at 4 pm on Monday

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A thick layer of smog blanketed Delhi and its suburbs, reducing visibility to just 600 metres at 8 am at the Safdarjung Observatory, the national capital’s primary weather station. The visibility was 800 metres at the Indira Gandhi International Airport

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