India, Oct. 18 -- Delhi's air quality remained in the 'poor' category for a fifth day straight on Saturday as the Air Quality Index (AQI) was recorded at 268, according to the Central Pollution Control Board.

The major pollutants in Delhi were PM10 and PM2.5. The pollution affected visibility across the city, show pictures. The poor air quality comes on the day of Dhanteras and two days before Diwali, when the AQI is expected to plummet further.

On Friday, October 17, the AQI of Delhi was 254; on Thursday, it was 245; on Wednesday, it was 233; and on Tuesday, it was 211.

Before that, Delhi's air was in 'moderate' category.

According to CPCB's data, Ghaziabad's air quality was the worst on Saturday with an AQI of 324, putting it in 've...