Ambala vs Patna
Side-by-side air quality comparison between Ambala and Patna.
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 Patna averaged 172 — a 78-point (83%) gap, with Patna the more polluted and Ambala the cleaner of the two. On 1973 days when both cities reported, Ambala was cleaner on 1632 of them; the average daily gap was 113 AQI points.
Seasonality & days
Ambala peaks in November, while Patna peaks in December. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Patna 30 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Patna spans 6 stations with a 39-point spread (min 154, max 193).