Dewās vs Thrissur
Side-by-side air quality comparison between Dewās 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 | Dewās | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 28.60 | 7.20 |
| PM10(µg/m³) | 58.30 | 10.00 |
| NO₂(µg/m³) | 1.00 | 2.90 |
| SO₂(µg/m³) | 6.70 | 1.60 |
| O₃(µg/m³) | 113.00 | 58.00 |
| CO(µg/m³) | 164.00 | 109.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dewās averaged an AQI of 98 while Thrissur averaged 57 — a 41-point (72%) gap, with Dewās the more polluted and Thrissur the cleaner of the two. On 1064 days when both cities reported, Thrissur was cleaner on 773 of them; the average daily gap was 45 AQI points.
Seasonality & days
Dewās peaks in December, while Thrissur peaks in February. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Thrissur 52 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 12 compared to Dewās's 59.