Air high quality improves however nonetheless ‘very poor’ in Ghaziabad, Noida, Faridabad

Noida (UP), December 10

The air quality improved in Ghaziabad, Noida, Greater Noida and Faridabad but stayed in the “very poor” category while it was in the “poor” zone in Gurgaon, according to a government agency data on Thursday.  The air quality in Ghaziabad returned to “very poor” level after staying in the “severe” category for six days in a row, the data showed.

Presence of pollutant PM 2.5 and PM 10 also remained high in the five immediate neighbours of Delhi, according to the air quality index (AQI) maintained by the Central Pollution Control Board (CPCB).

According to the index, an AQI between zero and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’.

The average 24-hour AQI at 4 pm on Thursday was 330 in Ghaziabad, 322 in Greater Noida, 310 in Noida, 300 in Faridabad and 217 in Gurgaon, according to CPCB’s Sameer app.

On Wednesday, it was 418 in Ghaziabad, 394 in Noida, 404 in Greater Noida, 395 in Faridabad and 296 in Gurgaon.

The CPCB states that an AQI in the “poor” category causes breathing discomfort while “very poor” may cause respiratory illness on prolonged exposure.

The AQI for each city is based on the average value of all stations there.

Noida, Faridabad, Ghaziabad have four stations each, while Gurgaon has three and Greater Noida two, according to the app. — PTI 

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