Asansol vs Kannur
Side-by-side air quality comparison between Asansol 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 | Asansol | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 91.00 | 5.70 |
| PM10(µg/m³) | 96.20 | 11.30 |
| NO₂(µg/m³) | 48.00 | 3.30 |
| SO₂(µg/m³) | 91.90 | 1.10 |
| O₃(µg/m³) | 58.00 | 51.00 |
| CO(µg/m³) | 838.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Kannur averaged 65 — a 80-point (123%) gap, with Asansol the more polluted and Kannur the cleaner of the two. On 1081 days when both cities reported, Kannur was cleaner on 954 of them; the average daily gap was 80 AQI points.
Seasonality & days
Asansol peaks in December, while Kannur peaks in February. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Kannur 103 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Kannur spans 1 stations with a 0-point spread (min 66, max 66).
Verdict
🏆 Kannur has better air quality with an AQI of 11 compared to Asansol's 204. That's a significant difference of 193 points.