Guwahati vs Rourkela
Side-by-side air quality comparison between Guwahati 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 | Guwahati | Rourkela |
|---|---|---|
| PM2.5(µg/m³) | 33.80 | 107.60 |
| PM10(µg/m³) | 37.10 | 119.70 |
| NO₂(µg/m³) | 6.60 | 48.00 |
| SO₂(µg/m³) | 4.00 | 17.00 |
| O₃(µg/m³) | 81.00 | 26.00 |
| CO(µg/m³) | 397.00 | 365.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Rourkela averaged 115 — a 8-point (7%) gap, with Guwahati the more polluted and Rourkela the cleaner of the two. On 395 days when both cities reported, Rourkela was cleaner on 232 of them; the average daily gap was 63 AQI points.
Seasonality & days
Guwahati peaks in January, while Rourkela peaks in November. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Rourkela was 0% Severe and 32.9% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Rourkela 60 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Rourkela has improved by 112 AQI points (49.3%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Rourkela hit AQI 344 at Raghunathpali (OSPCB) on 2024-01-01.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Rourkela spans 3 stations with a 29-point spread (min 106, max 135).
Verdict
🏆 Guwahati has better air quality with an AQI of 57 compared to Rourkela's 259. That's a significant difference of 202 points.