Kannur vs Perundurai
Side-by-side air quality comparison between Kannur and Perundurai.
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 | Kannur | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 5.00 | 7.70 |
| PM10(µg/m³) | 9.60 | 8.80 |
| NO₂(µg/m³) | 2.80 | 11.70 |
| SO₂(µg/m³) | 1.00 | 3.40 |
| O₃(µg/m³) | 50.00 | 32.00 |
| CO(µg/m³) | 138.00 | 162.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kannur averaged an AQI of 65 while Perundurai averaged 75 — a 10-point (15%) gap, with Perundurai the more polluted and Kannur the cleaner of the two. On 32 days when both cities reported, Kannur was cleaner on 20 of them; the average daily gap was 32 AQI points.
Seasonality & days
Kannur peaks in February, while Perundurai peaks in November. Kannur logged 0% Severe days and 92% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Kannur 103 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Kannur reached AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Kannur spans 1 CPCB stations with a 0-point spread (min 66, max 66); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Kannur has better air quality with an AQI of 10 compared to Perundurai's 13.