Kalyān vs Thrissur
Side-by-side air quality comparison between Kalyān 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 | Kalyān | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 24.30 | 7.20 |
| PM10(µg/m³) | 50.80 | 10.00 |
| NO₂(µg/m³) | 5.00 | 2.90 |
| SO₂(µg/m³) | 16.90 | 1.60 |
| O₃(µg/m³) | 106.00 | 58.00 |
| CO(µg/m³) | 150.00 | 109.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kalyān averaged an AQI of 95 while Thrissur averaged 57 — a 38-point (67%) gap, with Kalyān the more polluted and Thrissur the cleaner of the two. On 753 days when both cities reported, Thrissur was cleaner on 629 of them; the average daily gap was 67 AQI points.
Seasonality & days
Kalyān peaks in January, while Thrissur peaks in February. Kalyān logged 0.1% Severe days and 46.4% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Kalyān 78 days, Thrissur 52 days.
Year-over-year progress
Kalyān has improved by 4 AQI points (4%) from 2019 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Kalyān reached AQI 414 at Khadakpada (MPCB) on 2022-01-24; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Kalyān spans 2 CPCB stations with a 18-point spread (min 98, max 116); 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 Kalyān's 52.