Ambala vs Thrissur
Side-by-side air quality comparison between Ambala 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 | Ambala | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 43.50 | 9.10 |
| PM10(µg/m³) | 145.80 | 11.40 |
| NO₂(µg/m³) | 7.90 | 9.00 |
| SO₂(µg/m³) | 13.30 | 3.40 |
| O₃(µg/m³) | 151.00 | 37.00 |
| CO(µg/m³) | 544.00 | 204.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Thrissur averaged 57 — a 37-point (65%) gap, with Ambala the more polluted and Thrissur the cleaner of the two. On 1063 days when both cities reported, Thrissur was cleaner on 838 of them; the average daily gap was 66 AQI points.
Seasonality & days
Ambala peaks in November, while Thrissur peaks in February. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Thrissur 52 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 15 compared to Ambala's 131. That's a significant difference of 116 points.