Hosur vs Kannur
Side-by-side air quality comparison between Hosur 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 | Hosur | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 4.50 | 5.70 |
| PM10(µg/m³) | 5.00 | 11.30 |
| NO₂(µg/m³) | 7.50 | 3.30 |
| SO₂(µg/m³) | 4.10 | 1.10 |
| O₃(µg/m³) | 38.00 | 51.00 |
| CO(µg/m³) | 140.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Hosur averaged an AQI of 90 while Kannur averaged 65 — a 25-point (38%) gap, with Hosur the more polluted and Kannur the cleaner of the two. On 92 days when both cities reported, Kannur was cleaner on 77 of them; the average daily gap was 27 AQI points.
Seasonality & days
Hosur peaks in December, while Kannur peaks in February. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Kannur 103 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Kannur spans 1 stations with a 0-point spread (min 66, max 66).
Verdict
🏆 Hosur has better air quality with an AQI of 8 compared to Kannur's 11.