Sagar vs Thrissur
Side-by-side air quality comparison between Sagar 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 | Sagar | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 24.90 | 8.60 |
| PM10(µg/m³) | 41.00 | 10.10 |
| NO₂(µg/m³) | 11.80 | 9.80 |
| SO₂(µg/m³) | 4.10 | 3.30 |
| O₃(µg/m³) | 61.00 | 29.00 |
| CO(µg/m³) | 211.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Sagar averaged an AQI of 96 while Thrissur averaged 57 — a 39-point (68%) gap, with Sagar the more polluted and Thrissur the cleaner of the two. On 792 days when both cities reported, Thrissur was cleaner on 542 of them; the average daily gap was 48 AQI points.
Seasonality & days
Sagar peaks in November, while Thrissur peaks in February. Sagar logged 0% Severe days and 69.9% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Sagar 57 days, Thrissur 52 days.
Year-over-year progress
Sagar has worsened by 24 AQI points (33.3%) from 2020 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Sagar reached AQI 347 at Civil Lines (MPPCB) on 2024-12-25; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Sagar spans 2 CPCB stations with a 45-point spread (min 73, max 118); 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 Sagar's 42.