Rourkela vs Ulhasnagar
Side-by-side air quality comparison between Rourkela and Ulhasnagar.
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 | Ulhasnagar |
|---|---|---|
| PM2.5(µg/m³) | 107.60 | 22.10 |
| PM10(µg/m³) | 119.70 | 40.40 |
| NO₂(µg/m³) | 48.00 | 23.10 |
| SO₂(µg/m³) | 17.00 | 21.70 |
| O₃(µg/m³) | 26.00 | 19.00 |
| CO(µg/m³) | 365.00 | 208.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Rourkela averaged an AQI of 115 while Ulhasnagar averaged 117 — a 2-point (2%) gap, with Ulhasnagar the more polluted and Rourkela the cleaner of the two. On 351 days when both cities reported, Ulhasnagar was cleaner on 225 of them; the average daily gap was 50 AQI points.
Seasonality & days
Rourkela peaks in November, while Ulhasnagar peaks in January. Rourkela logged 0% Severe days and 32.9% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Rourkela 60 days, Ulhasnagar 74 days.
Year-over-year progress
Rourkela has improved by 112 AQI points (49.3%) from 2022 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Rourkela reached AQI 344 at Raghunathpali (OSPCB) on 2024-01-01; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Rourkela spans 3 CPCB stations with a 29-point spread (min 106, max 135); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).
Verdict
🏆 Ulhasnagar has better air quality with an AQI of 40 compared to Rourkela's 259. That's a significant difference of 219 points.