Ambala vs Ludhiana
Side-by-side air quality comparison between Ambala and Ludhiana.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Ludhiana averaged 117 — a 23-point (24%) gap, with Ludhiana the more polluted and Ambala the cleaner of the two. On 999 days when both cities reported, Ludhiana was cleaner on 684 of them; the average daily gap was 43 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Ludhiana 53 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).