Delhi vs Thrissur
Side-by-side air quality comparison between Delhi 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 | Delhi | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 80.80 | 8.60 |
| PM10(µg/m³) | 143.90 | 10.10 |
| NO₂(µg/m³) | 41.80 | 9.80 |
| SO₂(µg/m³) | 33.00 | 3.30 |
| O₃(µg/m³) | 63.00 | 29.00 |
| CO(µg/m³) | 568.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Thrissur averaged 57 — a 153-point (268%) gap, with Delhi the more polluted and Thrissur the cleaner of the two. On 1165 days when both cities reported, Thrissur was cleaner on 1165 of them; the average daily gap was 237 AQI points.
Seasonality & days
Delhi peaks in November, while Thrissur peaks in February. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Thrissur 52 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); 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 Delhi's 170. That's a significant difference of 156 points.