Ariyalur vs Kannur
Side-by-side air quality comparison between Ariyalur and Kannur.
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 | Ariyalur | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 4.40 | 6.20 |
| PM10(µg/m³) | 5.00 | 12.40 |
| NO₂(µg/m³) | 2.30 | 1.30 |
| SO₂(µg/m³) | 7.90 | 0.70 |
| O₃(µg/m³) | 95.00 | 59.00 |
| CO(µg/m³) | 128.00 | 108.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Kannur averaged 65 — a 19-point (41%) gap, with Kannur the more polluted and Ariyalur the cleaner of the two. On 388 days when both cities reported, Ariyalur was cleaner on 309 of them; the average daily gap was 29 AQI points.
Seasonality & days
Ariyalur peaks in March, while Kannur peaks in February. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Kannur 103 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Kannur spans 1 stations with a 0-point spread (min 66, max 66).
Verdict
🏆 Ariyalur has better air quality with an AQI of 7 compared to Kannur's 12.