India, Nov. 26 -- Mumbai spent Tuesday wrapped in a persistent haze as air quality deteriorated across several parts of the city, even though temperatures stayed slightly above normal.

The minimum temperature at IMD's Santacruz observatory was 21.6degC, about 1.3degC above normal, while the maximum touched 34.2degC, 0.3 degrees above normal.

By 6pm, the city's overall AQI was 168 (moderate), but six stations had already slipped into the "poor" category. Several locations have been reporting consistently poor air quality over the last seven days, creating emerging pollution hotspots.

Through the day, six stations recorded AQI values above 200. Chakala in Andheri east touched 255 and crossed the 300-mark for PM2.5 many times since Monday...