Rourkela vs Shillong
Side-by-side air quality comparison between Rourkela and Shillong.
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 | Rourkela | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 111.80 | 17.90 |
| PM10(µg/m³) | 123.90 | 21.40 |
| NO₂(µg/m³) | 35.70 | 3.10 |
| SO₂(µg/m³) | 23.90 | 6.20 |
| O₃(µg/m³) | 66.00 | 118.00 |
| CO(µg/m³) | 408.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Rourkela averaged an AQI of 115 while Shillong averaged 75 — a 40-point (53%) gap, with Rourkela the more polluted and Shillong the cleaner of the two. On 225 days when both cities reported, Shillong was cleaner on 207 of them; the average daily gap was 87 AQI points.
Seasonality & days
Rourkela peaks in November, while Shillong peaks in February. Rourkela logged 0% Severe days and 32.9% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Rourkela 60 days, Shillong 113 days.
Year-over-year progress
Rourkela has improved by 112 AQI points (49.3%) from 2022 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Rourkela reached AQI 344 at Raghunathpali (OSPCB) on 2024-01-01; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Rourkela spans 3 CPCB stations with a 29-point spread (min 106, max 135); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Rourkela's 273. That's a significant difference of 243 points.