Air quality slips to 'severe' in Ghaziabad, Noida; 'very poor' in Faridabad

Representational image.

The air quality deteriorated to severe level in Ghaziabad and Greater Noida, while it remained "very poor" in Noida and Faridabad, and poor in Gurgaon, according to data from a government agency on Saturday.

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 Saturday was 415 in Ghaziabad, 404 in Greater Noida, 393 in Noida, 348 in Faridabad and 296 in Gurgaon, according to CPCB's Sameer app.

On Friday, it was 347 in Ghaziabad, 330 in Greater Noida, 324 in Noida, 290 in Faridabad and 256 in Gurgaon. On Thursday, it was 330 in Ghaziabad, 322 in Greater Noida, 310 in Noida, 300 in Faridabad and 217 in Gurgaon.

The CPCB states that an AQI in the severe category affects healthy people and seriously impacts those with existing diseases, while very poor" may cause respiratory illness on prolonged exposure and poor may cause breathing discomfort.

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.

Dear Reader,

Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.

We, however, have a request.

As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.

Support quality journalism and subscribe to Business Standard.

Digital Editor

Business Standard is now on Telegram.
For insightful reports and views on business, markets, politics and other issues, subscribe to our official Telegram channel