Bulandshahr vs Chandigarh
Side-by-side air quality comparison between Bulandshahr and Chandigarh.
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 | Chandigarh |
|---|---|---|
| PM2.5(µg/m³) | 71.70 | 46.30 |
| PM10(µg/m³) | 108.50 | 63.60 |
| NO₂(µg/m³) | 30.30 | 30.10 |
| SO₂(µg/m³) | 10.30 | 10.30 |
| O₃(µg/m³) | 60.00 | 64.00 |
| CO(µg/m³) | 488.00 | 602.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Chandigarh averaged 153 — a 11-point (8%) gap, with Chandigarh the more polluted and Bulandshahr the cleaner of the two. On 1885 days when both cities reported, Chandigarh was cleaner on 1109 of them; the average daily gap was 74 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Chandigarh peaks in January. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Chandigarh was 0.3% Severe and 39.9% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Chandigarh 92 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Chandigarh has worsened by 27 AQI points (21.4%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Chandigarh hit AQI 452 at Sector-53 (CPCC) on 2022-11-09.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Chandigarh spans 3 stations with a 43-point spread (min 107, max 150).
Verdict
🏆 Chandigarh has better air quality with an AQI of 78 compared to Bulandshahr's 140. That's a significant difference of 62 points.