Kochi vs Korba
Side-by-side air quality comparison between Kochi and Korba.
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 | Kochi | Korba |
|---|---|---|
| PM2.5(µg/m³) | 8.80 | 48.10 |
| PM10(µg/m³) | 11.60 | 56.60 |
| NO₂(µg/m³) | 8.90 | 15.00 |
| SO₂(µg/m³) | 2.70 | 20.40 |
| O₃(µg/m³) | 30.00 | 86.00 |
| CO(µg/m³) | 119.00 | 325.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Korba averaged 67 — a 24-point (36%) gap, with Kochi the more polluted and Korba the cleaner of the two. On 346 days when both cities reported, Korba was cleaner on 226 of them; the average daily gap was 41 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Korba was 0% Severe and 78.8% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Korba 83 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Korba has improved by 19 AQI points (22.1%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Korba hit AQI 313 at Urja Nagar (CECB) on 2023-01-04.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Korba spans 2 stations with a 13-point spread (min 62, max 75).
Verdict
🏆 Kochi has better air quality with an AQI of 15 compared to Korba's 81. That's a significant difference of 66 points.