India, Nov. 10 -- A year after post-Diwali air quality in Noida and Greater Noida stood at 320 and 282, respectively, the two cities have recorded contrasting trends this year, with Noida registering a higher pollution level while Greater Noida has reported an improvement, according to pollution monitoring data.

Noida's Air Quality Index (AQI) stood at 332 at 4.05pm on Monday, 12 points higher than the corresponding post-Diwali reading of 320 last year. Greater Noida, meanwhile, recorded an AQI of 252, 30 points lower than last year's 282. While Noida remained in the 'very poor' category, Greater Noida was in the 'poor' category, according to the UPPCB monitoring dashboard.

The latest readings came a day after Diwali, celebrated on Nove...