Bilaspur vs Kozhikode
Side-by-side air quality comparison between Bilaspur 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 | Bilaspur | Kozhikode |
|---|---|---|
| PM2.5(µg/m³) | 38.80 | 4.30 |
| PM10(µg/m³) | 47.40 | 9.50 |
| NO₂(µg/m³) | 22.60 | 0.70 |
| SO₂(µg/m³) | 15.90 | 0.30 |
| O₃(µg/m³) | 56.00 | 64.00 |
| CO(µg/m³) | 481.00 | 171.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bilaspur averaged an AQI of 61 while Kozhikode averaged 78 — a 17-point (28%) gap, with Kozhikode the more polluted and Bilaspur the cleaner of the two. On 391 days when both cities reported, Kozhikode was cleaner on 202 of them; the average daily gap was 20 AQI points.
Seasonality & days
Bilaspur peaks in December, while Kozhikode peaks in January. Bilaspur logged 0% Severe days and 88% Good-or-Satisfactory days; Kozhikode was 0.1% Severe and 99% Good-or-Satisfactory. Longest clean-air streaks: Bilaspur 66 days, Kozhikode 83 days.
Year-over-year progress
Bilaspur has improved by 22 AQI points (26.5%) from 2021 to 2024; Kozhikode has worsened by 29 AQI points (59.2%) over the same window. The worst recorded day for Bilaspur reached AQI 259 at Mangala (NTPC) on 2023-03-09; Kozhikode hit AQI 417 at Palayam Kozhikode (PCB) on 2021-01-25.
Station-level disparity
Bilaspur spans 1 CPCB stations with a 0-point spread (min 69, max 69); 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 Bilaspur's 65. That's a significant difference of 55 points.