Updated On: 15 May, 2025 12:08 PM IST | Anushree Gaikwad
A layer of dust covered the city on Thursday morning after overnight dust storms, reducing visibility and leading to a dip in the air quality. (Pics/PTI)

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The dust storms were triggered by gusty winds sweeping at speeds of 30 to 40 kmph, according to the India Meteorological Department (IMD)
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Visibility had fallen from 4,500 metres to 1,200 metres at IGI airport from 10 pm to 11:30 pm on Wednesday night after the dust storm

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Since the storm, calm to weak wind conditions, ranging from 3 to 7 kmph, have prevailed, preventing the dispersion of dust particles
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As a result, visibility continues to remain poor, fluctuating between 1,200 and 1,500 metres at both the Safdarjung and Palam airports, the IMD added

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The dust storm has affected Delhi`s air quality, with the AQI slipping into the poor category after remaining in the moderate range for the past few weeks
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According to the Central Pollution Control Board, the AQI was recorded at 236 in the poor category at 8 am

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An AQI between zero and 50 is considered `good`, 51 and 100 `satisfactory`, 101 and 200 `moderate`, 201 and 300 `poor`, 301 and 400 `very poor`, and 401 and 500 `severe`
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The weather department has predicted strong surface winds during the day