Ghaziabad vs Guwahati
Side-by-side air quality comparison between Ghaziabad 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 | Ghaziabad | Guwahati |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 31.90 |
| PM10(µg/m³) | 96.40 | 36.00 |
| NO₂(µg/m³) | 27.40 | 5.40 |
| SO₂(µg/m³) | 11.00 | 4.20 |
| O₃(µg/m³) | 65.00 | 97.00 |
| CO(µg/m³) | 542.00 | 393.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ghaziabad averaged an AQI of 177 while Guwahati averaged 123 — a 54-point (44%) gap, with Ghaziabad the more polluted and Guwahati the cleaner of the two. On 1749 days when both cities reported, Guwahati was cleaner on 1475 of them; the average daily gap was 126 AQI points.
Seasonality & days
Ghaziabad peaks in November, while Guwahati peaks in January. Ghaziabad logged 12.2% Severe days and 13.700000000000001% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Ghaziabad 19 days, Guwahati 105 days.
Year-over-year progress
Ghaziabad has improved by 115 AQI points (39.4%) from 2017 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Ghaziabad reached AQI 500 at Vasundhara (UPPCB) on 2017-12-21; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Ghaziabad spans 4 CPCB stations with a 30-point spread (min 198, max 228); Guwahati spans 4 stations with a 26-point spread (min 118, max 144).
Verdict
🏆 Guwahati has better air quality with an AQI of 54 compared to Ghaziabad's 133. That's a significant difference of 79 points.