Gwalior vs Thrissur
Side-by-side air quality comparison between Gwalior and Thrissur.
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 | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 40.70 | 8.60 |
| PM10(µg/m³) | 97.60 | 10.30 |
| NO₂(µg/m³) | 14.70 | 11.10 |
| SO₂(µg/m³) | 5.70 | 3.10 |
| O₃(µg/m³) | 49.00 | 23.00 |
| CO(µg/m³) | 247.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Thrissur averaged 57 — a 79-point (139%) gap, with Gwalior the more polluted and Thrissur the cleaner of the two. On 833 days when both cities reported, Thrissur was cleaner on 767 of them; the average daily gap was 106 AQI points.
Seasonality & days
Gwalior peaks in November, while Thrissur peaks in February. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Thrissur 52 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 14 compared to Gwalior's 98. That's a significant difference of 84 points.