Kochi vs Ludhiana
Side-by-side air quality comparison between Kochi and Ludhiana.
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 | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 8.80 | 71.50 |
| PM10(µg/m³) | 11.60 | 100.40 |
| NO₂(µg/m³) | 8.90 | 31.30 |
| SO₂(µg/m³) | 2.70 | 17.00 |
| O₃(µg/m³) | 30.00 | 62.00 |
| CO(µg/m³) | 119.00 | 748.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Ludhiana averaged 117 — a 26-point (29%) gap, with Ludhiana the more polluted and Kochi the cleaner of the two. On 533 days when both cities reported, Kochi was cleaner on 334 of them; the average daily gap was 49 AQI points.
Seasonality & days
Kochi peaks in January, while Ludhiana peaks in November. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Ludhiana 53 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Kochi has better air quality with an AQI of 15 compared to Ludhiana's 139. That's a significant difference of 124 points.