Howrah vs Rourkela
Side-by-side air quality comparison between Howrah 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 | Howrah | Rourkela |
|---|---|---|
| PM2.5(µg/m³) | 68.70 | 107.60 |
| PM10(µg/m³) | 72.60 | 119.70 |
| NO₂(µg/m³) | 22.20 | 48.00 |
| SO₂(µg/m³) | 11.50 | 17.00 |
| O₃(µg/m³) | 55.00 | 26.00 |
| CO(µg/m³) | 360.00 | 365.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Howrah averaged an AQI of 126 while Rourkela averaged 115 — a 11-point (10%) gap, with Howrah the more polluted and Rourkela the cleaner of the two. On 395 days when both cities reported, Rourkela was cleaner on 217 of them; the average daily gap was 64 AQI points.
Seasonality & days
Howrah peaks in December, while Rourkela peaks in November. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Rourkela was 0% Severe and 32.9% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Rourkela 60 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Rourkela has improved by 112 AQI points (49.3%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Rourkela hit AQI 344 at Raghunathpali (OSPCB) on 2024-01-01.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Rourkela spans 3 stations with a 29-point spread (min 106, max 135).
Verdict
🏆 Howrah has better air quality with an AQI of 130 compared to Rourkela's 259. That's a significant difference of 129 points.