Thiruvananthapuram vs Thrissur
Side-by-side air quality comparison between Thiruvananthapuram 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 | Thiruvananthapuram | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 5.30 | 8.60 |
| PM10(µg/m³) | 9.50 | 10.10 |
| NO₂(µg/m³) | 1.50 | 9.80 |
| SO₂(µg/m³) | 0.40 | 3.30 |
| O₃(µg/m³) | 38.00 | 29.00 |
| CO(µg/m³) | 102.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Thiruvananthapuram averaged an AQI of 56 while Thrissur averaged 57 — a 1-point (2%) gap, with Thrissur the more polluted and Thiruvananthapuram the cleaner of the two. On 847 days when both cities reported, Thrissur was cleaner on 454 of them; the average daily gap was 19 AQI points.
Seasonality & days
Thiruvananthapuram peaks in January, while Thrissur peaks in February. Thiruvananthapuram logged 0% Severe days and 92% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Thiruvananthapuram 172 days, Thrissur 52 days.
Year-over-year progress
Thiruvananthapuram has improved by 11 AQI points (16.4%) from 2017 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Thiruvananthapuram reached AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Thiruvananthapuram spans 2 CPCB stations with a 7-point spread (min 57, max 64); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thiruvananthapuram has better air quality with an AQI of 10 compared to Thrissur's 14.