Kozhikode vs Tiruchirappalli
Side-by-side air quality comparison between Kozhikode and Tiruchirappalli.
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 | Kozhikode | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 4.30 | 5.60 |
| PM10(µg/m³) | 9.50 | 6.40 |
| NO₂(µg/m³) | 0.70 | 6.80 |
| SO₂(µg/m³) | 0.30 | 3.40 |
| O₃(µg/m³) | 64.00 | 40.00 |
| CO(µg/m³) | 171.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2023, Kozhikode averaged an AQI of 78 while Tiruchirappalli averaged 50 — a 28-point (56%) gap, with Kozhikode the more polluted and Tiruchirappalli the cleaner of the two.
Seasonality & days
Both cities see their worst air in January on average. Kozhikode logged 0.1% Severe days and 99% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Kozhikode 83 days, Tiruchirappalli 46 days.
Year-over-year progress
Kozhikode has worsened by 29 AQI points (59.2%) from 2020 to 2023; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Kozhikode reached AQI 417 at Palayam Kozhikode (PCB) on 2021-01-25; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Kozhikode spans 1 CPCB stations with a 0-point spread (min 59, max 59); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 9 compared to Kozhikode's 10.