‘Dense fog’ blankets Delhi; visibility dips to zero at Palam
A dense fog blanketed Delhi for the first time this season on Wednesday, reducing visibility to zero at the Delhi airport as calm winds stalled the dispersion of pollutants, worsening air quality to the higher end of the “very poor” category. The average Air Quality Index (AQI) was 361 (“very poor”) at 8 a.m., up…