The air quality was “moderate” across Noida, Gurgaon and Faridabad but “poor” in Ghaziabad and Greater Noida on Monday, a government agency data on air pollution in NCR said.
The air quality was “moderate” across Noida, Gurgaon and Faridabad but “poor” in Ghaziabad and Greater Noida on Monday, a government agency data on air pollution in NCR said.
As per the air quality index (AQI) of the Central Pollution Control Board, pollutants PM 2.5 and PM 10 also remained high in the air of the five immediate neighbourhoods of Delhi.
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 Monday was 224 in Ghaziabad, 208 in Greater Noida, 182 in Noida, 173 in Faridabad and 187 in Gurgaon, according to the CPCB's Sameer app.
On Sunday it was 195 in Ghaziabad, 182 in Greater Noida, 174 in Noida, 180 in Faridabad and 195 in Gurgaon.
The CPCB states that an AQI in the "moderate” category may cause breathing discomfort to people with lungs, asthma and heart diseases, while "poor" may cause breathing discomfort to most people on prolonged exposure.
The AQI for each city is based on the average value of all monitoring stations there. Ghaziabad, Gurgaon and Noida have four such stations while Greater Noida and Faridabad have two stations each, according to the app.
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