Kannur vs Nagapattinam
Side-by-side air quality comparison between Kannur and Nagapattinam.
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 | Nagapattinam |
|---|---|---|
| PM2.5(µg/m³) | 6.00 | 12.60 |
| PM10(µg/m³) | 11.90 | 17.60 |
| NO₂(µg/m³) | 1.70 | 1.70 |
| SO₂(µg/m³) | 0.80 | 3.50 |
| O₃(µg/m³) | 58.00 | 102.00 |
| CO(µg/m³) | 118.00 | 180.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kannur averaged an AQI of 65 while Nagapattinam averaged 60 — a 5-point (8%) gap, with Kannur the more polluted and Nagapattinam the cleaner of the two. On 20 days when both cities reported, Kannur was cleaner on 12 of them; the average daily gap was 27 AQI points.
Seasonality & days
Kannur peaks in February, while Nagapattinam peaks in November. Kannur logged 0% Severe days and 92% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Kannur 103 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Kannur reached AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Kannur spans 1 CPCB stations with a 0-point spread (min 66, max 66); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).
Verdict
🏆 Kannur has better air quality with an AQI of 12 compared to Nagapattinam's 21.