Ahmedabad vs Chandigarh
Side-by-side air quality comparison between Ahmedabad 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 | Ahmedabad | Chandigarh |
|---|---|---|
| PM2.5(µg/m³) | 23.50 | 46.30 |
| PM10(µg/m³) | 38.60 | 63.60 |
| NO₂(µg/m³) | 6.50 | 30.10 |
| SO₂(µg/m³) | 5.20 | 10.30 |
| O₃(µg/m³) | 41.00 | 64.00 |
| CO(µg/m³) | 163.00 | 602.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ahmedabad averaged an AQI of 117 while Chandigarh averaged 153 — a 36-point (31%) gap, with Chandigarh the more polluted and Ahmedabad the cleaner of the two. On 1906 days when both cities reported, Chandigarh was cleaner on 1220 of them; the average daily gap was 62 AQI points.
Seasonality & days
Ahmedabad peaks in November, while Chandigarh peaks in January. Ahmedabad logged 0.1% Severe days and 23.7% Good-or-Satisfactory days; Chandigarh was 0.3% Severe and 39.9% Good-or-Satisfactory. Longest clean-air streaks: Ahmedabad 25 days, Chandigarh 92 days.
Year-over-year progress
Ahmedabad has worsened by 52 AQI points (80%) from 2016 to 2024; Chandigarh has worsened by 27 AQI points (21.4%) over the same window. The worst recorded day for Ahmedabad reached AQI 430 at Raikhad (IITM) on 2023-03-17; Chandigarh hit AQI 452 at Sector-53 (CPCC) on 2022-11-09.
Station-level disparity
Ahmedabad spans 9 CPCB stations with a 44-point spread (min 95, max 139); Chandigarh spans 3 stations with a 43-point spread (min 107, max 150).
Verdict
🏆 Ahmedabad has better air quality with an AQI of 39 compared to Chandigarh's 78.