Guwahati vs Thrissur
Side-by-side air quality comparison between Guwahati 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 | Guwahati | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 33.80 | 8.60 |
| PM10(µg/m³) | 37.10 | 10.30 |
| NO₂(µg/m³) | 6.60 | 11.10 |
| SO₂(µg/m³) | 4.00 | 3.10 |
| O₃(µg/m³) | 81.00 | 23.00 |
| CO(µg/m³) | 397.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Thrissur averaged 57 — a 66-point (116%) gap, with Guwahati the more polluted and Thrissur the cleaner of the two. On 1161 days when both cities reported, Thrissur was cleaner on 1003 of them; the average daily gap was 86 AQI points.
Seasonality & days
Guwahati peaks in January, while Thrissur peaks in February. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Thrissur 52 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); 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 Guwahati's 57.