Bhubaneswar vs Chennai
Side-by-side air quality comparison between Bhubaneswar and Chennai.
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 | Bhubaneswar | Chennai |
|---|---|---|
| PM2.5(µg/m³) | 28.80 | 11.70 |
| PM10(µg/m³) | 32.60 | 13.10 |
| NO₂(µg/m³) | 11.40 | 14.20 |
| SO₂(µg/m³) | 10.00 | 10.10 |
| O₃(µg/m³) | 84.00 | 56.00 |
| CO(µg/m³) | 432.00 | 308.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhubaneswar averaged an AQI of 115 while Chennai averaged 68 — a 47-point (69%) gap, with Bhubaneswar the more polluted and Chennai the cleaner of the two. On 359 days when both cities reported, Chennai was cleaner on 208 of them; the average daily gap was 59 AQI points.
Seasonality & days
Bhubaneswar peaks in January, while Chennai peaks in December. Bhubaneswar logged 0% Severe days and 48.8% Good-or-Satisfactory days; Chennai was 0% Severe and 57.5% Good-or-Satisfactory. Longest clean-air streaks: Bhubaneswar 27 days, Chennai 53 days.
Year-over-year progress
The worst recorded day for Bhubaneswar reached AQI 341 at Lingraj Mandir (OSPCB) on 2024-01-09; Chennai hit AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14.
Station-level disparity
Bhubaneswar spans 2 CPCB stations with a 2-point spread (min 114, max 116); Chennai spans 9 stations with a 27-point spread (min 63, max 90).
Verdict
🏆 Chennai has better air quality with an AQI of 20 compared to Bhubaneswar's 48.