Ambala vs Siliguri
Side-by-side air quality comparison between Ambala and Siliguri.
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 Siliguri averaged 81 — a 13-point (16%) gap, with Ambala the more polluted and Siliguri the cleaner of the two. On 1481 days when both cities reported, Siliguri was cleaner on 1028 of them; the average daily gap was 74 AQI points.
Seasonality & days
Ambala peaks in November, while Siliguri peaks in February. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Siliguri 180 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).