Kochi vs Tumkur
Side-by-side air quality comparison between Kochi and Tumkur.
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 | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 8.80 | 3.40 |
| PM10(µg/m³) | 11.60 | 4.50 |
| NO₂(µg/m³) | 8.90 | 6.40 |
| SO₂(µg/m³) | 2.70 | 1.30 |
| O₃(µg/m³) | 30.00 | 35.00 |
| CO(µg/m³) | 119.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Tumkur averaged 88 — a 3-point (3%) gap, with Kochi the more polluted and Tumkur the cleaner of the two. On 249 days when both cities reported, Kochi was cleaner on 133 of them; the average daily gap was 39 AQI points.
Seasonality & days
Kochi peaks in January, while Tumkur peaks in December. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Tumkur 20 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Kochi's 15.