Alwar vs Kannur
Side-by-side air quality comparison between Alwar 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 | Alwar | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 41.00 | 27.94 |
| PM10(µg/m³) | 136.40 | 45.37 |
| NO₂(µg/m³) | 0.50 | 15.37 |
| SO₂(µg/m³) | 5.80 | 1.84 |
| O₃(µg/m³) | 165.00 | 5.40 |
| CO(µg/m³) | 278.00 | 213.77 |
| NH3(ppb) | — | 6.93 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Alwar averaged an AQI of 88 while Kannur averaged 65 — a 23-point (35%) gap, with Alwar the more polluted and Kannur the cleaner of the two. On 1427 days when both cities reported, Kannur was cleaner on 1106 of them; the average daily gap was 34 AQI points.
Seasonality & days
Alwar peaks in November, while Kannur peaks in February. Alwar logged 0% Severe days and 70.2% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Alwar 97 days, Kannur 103 days.
Year-over-year progress
Alwar has improved by 125 AQI points (58.7%) from 2017 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Alwar reached AQI 356 at Moti Doongri (RSPCB) on 2017-11-11; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Alwar spans 1 CPCB stations with a 0-point spread (min 95, max 95); Kannur spans 1 stations with a 0-point spread (min 66, max 66).
Verdict
🏆 Kannur has better air quality with an AQI of 47 compared to Alwar's 125. That's a significant difference of 78 points.