Bulandshahr vs Guwahati
Side-by-side air quality comparison between Bulandshahr and Guwahati.
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 | Guwahati |
|---|---|---|
| PM2.5(µg/m³) | 71.00 | 33.80 |
| PM10(µg/m³) | 110.10 | 37.10 |
| NO₂(µg/m³) | 35.60 | 6.60 |
| SO₂(µg/m³) | 9.70 | 4.00 |
| O₃(µg/m³) | 39.00 | 81.00 |
| CO(µg/m³) | 517.00 | 397.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Guwahati averaged 123 — a 19-point (15%) gap, with Bulandshahr the more polluted and Guwahati the cleaner of the two. On 2011 days when both cities reported, Guwahati was cleaner on 1282 of them; the average daily gap was 84 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Guwahati peaks in January. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Guwahati 105 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Guwahati spans 4 stations with a 26-point spread (min 118, max 144).
Verdict
🏆 Guwahati has better air quality with an AQI of 57 compared to Bulandshahr's 137. That's a significant difference of 80 points.