Air quality 'moderate' to 'poor' in Noida, Ghaziabad, Gurugram, Faridabad

The air quality remained "moderate" to "poor" on Tuesday in Faridabad, Gurugram, Gautam Buddh Nagar and Ghaziabad in the National Capital Region, according to a government agency. There was concentration of PM 2.5 and PM 10 pollutants in the air of the four immediate neighbouring districts of Delhi, according to the air quality index (AQI) maintained by the Central Pollution Control Board (CPCB).