Air quality ‘very poor’ in Ghaziabad, Noida, Gurgaon, Faridabad

By: |
December 3, 2020 10:14 PM

Presence of pollutants PM 2.5 and PM 10 also remained high in the five immediate neighbours of Delhi, according to the air quality index (AQI).

Analysis of the data showed that higher fine particulate matter (PM2.5 ) exposure was associated with a higher (8 per cent) risk of AMD.

The average air quality was recorded in the “very poor” category across Ghaziabad, Noida, Greater Noida, Faridabad and Gurgaon in the national capital region on Thursday, data from a government agency showed.

Presence of pollutants 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 377 in Ghaziabad, 360 in Noida, 358 in Greater Noida, 336 in Faridabad and 316 in Gurgaon, according to the CPCB’s Sameer app.

On Wednesday, it was 421 in Ghaziabad, 406 in Greater Noida, 394 in Noida, 326 in Faridabad and 324 in Gurgaon. It was 424 in Ghaziabad, 388 in Greater Noida, 387 in Noida, 335 in Faridabad and 311 in Gurgaon on Tuesday.

The CPCB states that an AQI in the “very poor” category 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.

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