Bulandshahr vs Kozhikode
Side-by-side air quality comparison between Bulandshahr 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 | Bulandshahr | Kozhikode |
|---|---|---|
| PM2.5(µg/m³) | 69.20 | 4.30 |
| PM10(µg/m³) | 121.10 | 9.50 |
| NO₂(µg/m³) | 22.90 | 0.70 |
| SO₂(µg/m³) | 11.10 | 0.30 |
| O₃(µg/m³) | 91.00 | 64.00 |
| CO(µg/m³) | 455.00 | 171.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Kozhikode averaged 78 — a 64-point (82%) gap, with Bulandshahr the more polluted and Kozhikode the cleaner of the two. On 988 days when both cities reported, Kozhikode was cleaner on 897 of them; the average daily gap was 139 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Kozhikode peaks in January. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Kozhikode was 0.1% Severe and 99% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Kozhikode 83 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Kozhikode has worsened by 29 AQI points (59.2%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Kozhikode hit AQI 417 at Palayam Kozhikode (PCB) on 2021-01-25.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); 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 Bulandshahr's 131. That's a significant difference of 121 points.