Bihar Sharif vs Kannur
Side-by-side air quality comparison between Bihar Sharif 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 | Bihar Sharif | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 5.70 |
| PM10(µg/m³) | 79.40 | 11.30 |
| NO₂(µg/m³) | 27.20 | 3.30 |
| SO₂(µg/m³) | 14.60 | 1.10 |
| O₃(µg/m³) | 64.00 | 51.00 |
| CO(µg/m³) | 543.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Kannur averaged 65 — a 50-point (77%) gap, with Bihar Sharif the more polluted and Kannur the cleaner of the two. On 672 days when both cities reported, Kannur was cleaner on 539 of them; the average daily gap was 98 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Kannur peaks in February. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Kannur 103 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); 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 Bihar Sharif's 140. That's a significant difference of 129 points.