Chandigarh vs Guwahati
Side-by-side air quality comparison between Chandigarh 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 | Chandigarh | Guwahati |
|---|---|---|
| PM2.5(µg/m³) | 46.30 | 31.90 |
| PM10(µg/m³) | 63.60 | 36.00 |
| NO₂(µg/m³) | 30.10 | 5.40 |
| SO₂(µg/m³) | 10.30 | 4.20 |
| O₃(µg/m³) | 64.00 | 97.00 |
| CO(µg/m³) | 602.00 | 393.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Guwahati averaged 123 — a 30-point (24%) gap, with Chandigarh the more polluted and Guwahati the cleaner of the two. On 1932 days when both cities reported, Guwahati was cleaner on 1040 of them; the average daily gap was 72 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Guwahati 105 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); 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 Chandigarh's 78.