Arrah vs Kozhikode
Side-by-side air quality comparison between Arrah and Kozhikode.
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 | Arrah | Kozhikode |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 4.30 |
| PM10(µg/m³) | 117.10 | 9.50 |
| NO₂(µg/m³) | 42.70 | 0.70 |
| SO₂(µg/m³) | 15.30 | 0.30 |
| O₃(µg/m³) | 46.00 | 64.00 |
| CO(µg/m³) | 841.00 | 171.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Kozhikode averaged 78 — a 45-point (58%) gap, with Arrah the more polluted and Kozhikode the cleaner of the two. On 323 days when both cities reported, Kozhikode was cleaner on 292 of them; the average daily gap was 118 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Kozhikode was 0.1% Severe and 99% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Kozhikode 83 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Kozhikode has worsened by 29 AQI points (59.2%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Kozhikode hit AQI 417 at Palayam Kozhikode (PCB) on 2021-01-25.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Kozhikode spans 1 stations with a 0-point spread (min 59, max 59).
Verdict
🏆 Kozhikode has better air quality with an AQI of 10 compared to Arrah's 244. That's a significant difference of 234 points.