Gurugram, Oct. 30 -- Gurugram recorded its worst air quality this October on Thursday, with the air quality index (AQI) rising to 242, in the 'poor' category, despite light rainfall and a cool breeze across the city.

According to data available on the Central Pollution Control Board's (CPCB) Sameer app, the city's AQI deteriorated from 203 (poor) on Wednesday and 174 (moderate) on Tuesday.

Among the monitoring stations, Sector 51 recorded the highest AQI of 275 on Thursday, followed by Gwal Pahari at 237 and TERI Gram at 214, all in the 'poor' category.

According to the CPCB, an AQI between 0 and 50 is classified as 'good', 51-100 as 'satisfactory', 101-200 as 'moderate', 201-300 as 'poor', 301-400 as 'very poor' and 401-500 as 'severe...