Asansol vs Rourkela
Side-by-side air quality comparison between Asansol and Rourkela.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Asansol | Rourkela |
|---|---|---|
| PM2.5(µg/m³) | 89.60 | 107.60 |
| PM10(µg/m³) | 95.50 | 119.70 |
| NO₂(µg/m³) | 48.70 | 48.00 |
| SO₂(µg/m³) | 82.10 | 17.00 |
| O₃(µg/m³) | 39.00 | 26.00 |
| CO(µg/m³) | 708.00 | 365.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Rourkela averaged 115 — a 30-point (26%) gap, with Asansol the more polluted and Rourkela the cleaner of the two. On 395 days when both cities reported, Rourkela was cleaner on 281 of them; the average daily gap was 56 AQI points.
Seasonality & days
Asansol peaks in December, while Rourkela peaks in November. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Rourkela was 0% Severe and 32.9% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Rourkela 60 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Rourkela has improved by 112 AQI points (49.3%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Rourkela hit AQI 344 at Raghunathpali (OSPCB) on 2024-01-01.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Rourkela spans 3 stations with a 29-point spread (min 106, max 135).
Verdict
🏆 Asansol has better air quality with an AQI of 199 compared to Rourkela's 259. That's a significant difference of 60 points.