New Delhi, Jan. 6 -- A thick layer of smog continued to blanket the National Capital on Tuesday, with air quality remaining in the 'poor' category across several parts of the city, according to data from the Central Pollution Control Board (CPCB).

According to CPCB readings, Delhi's overall Air Quality Index (AQI) was 288, placing it in the 'poor' category.

Several hotspots recorded even higher pollution levels, with Anand Vihar at 343, RK Puram at 324, Jawaharlal Nehru Stadium at 313, Dwarka at 307, Ashok Vihar at 302 and ITO at 286.

The AQI in ITO was recorded at 281, classified as poor by the CPCB. Some areas reported relatively better air quality in the moderate category, with Bawana at 194 and IGI Airport at 185.

Some areas, howe...