Kanchipuram vs Tiruchirappalli
Side-by-side air quality comparison between Kanchipuram 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 | Kanchipuram | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 9.40 | 5.60 |
| PM10(µg/m³) | 11.10 | 6.40 |
| NO₂(µg/m³) | 10.40 | 6.80 |
| SO₂(µg/m³) | 4.60 | 3.40 |
| O₃(µg/m³) | 44.00 | 40.00 |
| CO(µg/m³) | 243.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Tiruchirappalli averaged 50 — a 1-point (2%) gap, with Kanchipuram the more polluted and Tiruchirappalli the cleaner of the two. On 41 days when both cities reported, Kanchipuram was cleaner on 21 of them; the average daily gap was 25 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Tiruchirappalli peaks in January. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Tiruchirappalli 46 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); 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 Kanchipuram's 16.