Rourkela vs Tonk
Side-by-side air quality comparison between Rourkela and Tonk.
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 | Tonk |
|---|---|---|
| PM2.5(µg/m³) | 107.60 | 34.90 |
| PM10(µg/m³) | 119.70 | 75.90 |
| NO₂(µg/m³) | 48.00 | 14.10 |
| SO₂(µg/m³) | 17.00 | 4.50 |
| O₃(µg/m³) | 26.00 | 38.00 |
| CO(µg/m³) | 365.00 | 239.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Rourkela averaged an AQI of 115 while Tonk averaged 142 — a 27-point (23%) gap, with Tonk the more polluted and Rourkela the cleaner of the two. On 297 days when both cities reported, Tonk was cleaner on 155 of them; the average daily gap was 47 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Rourkela logged 0% Severe days and 32.9% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Rourkela 60 days, Tonk 11 days.
Year-over-year progress
Rourkela has improved by 112 AQI points (49.3%) from 2022 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Rourkela reached AQI 344 at Raghunathpali (OSPCB) on 2024-01-01; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Rourkela spans 3 CPCB stations with a 29-point spread (min 106, max 135); Tonk spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Tonk has better air quality with an AQI of 76 compared to Rourkela's 259. That's a significant difference of 183 points.