Gwalior vs Kannur
Side-by-side air quality comparison between Gwalior and Kannur.
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 | Gwalior | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 39.10 | 5.70 |
| PM10(µg/m³) | 89.40 | 11.30 |
| NO₂(µg/m³) | 12.30 | 3.30 |
| SO₂(µg/m³) | 6.20 | 1.10 |
| O₃(µg/m³) | 61.00 | 51.00 |
| CO(µg/m³) | 248.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Kannur averaged 65 — a 71-point (109%) gap, with Gwalior the more polluted and Kannur the cleaner of the two. On 1137 days when both cities reported, Kannur was cleaner on 1019 of them; the average daily gap was 97 AQI points.
Seasonality & days
Gwalior peaks in November, while Kannur peaks in February. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Kannur 103 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Kannur spans 1 stations with a 0-point spread (min 66, max 66).
Verdict
🏆 Kannur has better air quality with an AQI of 11 compared to Gwalior's 90. That's a significant difference of 79 points.