NDTV Profit’s Nov. 2 article ranked Rohtak first and listed its AQI as 486.
The numbered table contains 10 entries: ranks 1–7 and 9–11. Later prose gives different readings for Noida and Bulandshahr and mentions “Sampit,” which does not appear among the listed cities.
NDTV Profit said it used an air quality index (AQI) scale with category names that differ from India’s national index. The report does not identify its data provider or monitoring station, or state when the measurements were taken.
India’s Central Pollution Control Board (CPCB) divides its National AQI into six bands: Good (0–50), Satisfactory (51–100), Moderately Polluted (101–200), Poor (201–300), Very Poor (301–400) and Severe (401–500). CPCB says the highest pollutant sub-index determines the overall score. The agency says Severe readings may cause respiratory effects even in healthy people, with greater effects for those with heart or lung disease. NDTV Profit did not explain how its scores map onto CPCB’s categories.
A separate NDTV Profit report on Oct. 31 placed Rohtak second in an AQI.in ranking, as EconoTimes covered in its earlier report on the ranking. The two reports placed Rohtak at different positions.
