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GRAP-3 restrictions imposed as Delhi's air quality remains 'severe'
The city's 24-hour Air Quality Index (AQI), recorded at 4 pm every day, stood at 424, up from 418 the previous day. Out of ...
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Air quality crisis: Lahore tops global pollution charts
The air quality index is alarmingly high in Pakistan and India. This week, smog has drastically reduced visibility, obscuring ...