Ambala vs Chandigarh
Side-by-side air quality comparison between Ambala 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 | Ambala | Chandigarh |
|---|---|---|
| PM2.5(µg/m³) | 48.40 | 32.70 |
| PM10(µg/m³) | 189.50 | 70.30 |
| NO₂(µg/m³) | 5.50 | 3.20 |
| SO₂(µg/m³) | 14.60 | 14.10 |
| O₃(µg/m³) | 172.00 | 180.00 |
| CO(µg/m³) | 495.00 | 408.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Chandigarh averaged 153 — a 59-point (63%) gap, with Chandigarh the more polluted and Ambala the cleaner of the two. On 1789 days when both cities reported, Ambala was cleaner on 939 of them; the average daily gap was 59 AQI points.
Seasonality & days
Ambala peaks in November, while Chandigarh peaks in January. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Chandigarh was 0.3% Severe and 39.9% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Chandigarh 92 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Chandigarh has worsened by 27 AQI points (21.4%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Chandigarh hit AQI 452 at Sector-53 (CPCC) on 2022-11-09.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Chandigarh spans 3 stations with a 43-point spread (min 107, max 150).
Verdict
🏆 Chandigarh has better air quality with an AQI of 71 compared to Ambala's 160. That's a significant difference of 89 points.