Chapra vs Kannur
Side-by-side air quality comparison between Chapra 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 | Chapra | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 5.70 |
| PM10(µg/m³) | 117.10 | 11.30 |
| NO₂(µg/m³) | 42.70 | 3.30 |
| SO₂(µg/m³) | 15.30 | 1.10 |
| O₃(µg/m³) | 46.00 | 51.00 |
| CO(µg/m³) | 805.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Kannur averaged 65 — a 84-point (129%) gap, with Chapra the more polluted and Kannur the cleaner of the two. On 740 days when both cities reported, Kannur was cleaner on 681 of them; the average daily gap was 143 AQI points.
Seasonality & days
Chapra peaks in January, while Kannur peaks in February. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Kannur 103 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); 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 Chapra's 244. That's a significant difference of 233 points.