Bulandshahr vs Patna
Side-by-side air quality comparison between Bulandshahr and Patna.
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 | Patna |
|---|---|---|
| PM2.5(µg/m³) | 71.70 | 97.80 |
| PM10(µg/m³) | 108.50 | 109.40 |
| NO₂(µg/m³) | 30.30 | 40.50 |
| SO₂(µg/m³) | 10.30 | 18.90 |
| O₃(µg/m³) | 60.00 | 52.00 |
| CO(µg/m³) | 488.00 | 667.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Patna averaged 172 — a 30-point (21%) gap, with Patna the more polluted and Bulandshahr the cleaner of the two. On 2226 days when both cities reported, Bulandshahr was cleaner on 1541 of them; the average daily gap was 80 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Patna peaks in December. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Patna 30 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Patna spans 6 stations with a 39-point spread (min 154, max 193).
Verdict
🏆 Bulandshahr has better air quality with an AQI of 140 compared to Patna's 227. That's a significant difference of 87 points.