Siliguri vs Siwan
Side-by-side air quality comparison between Siliguri and Siwan.
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, Siliguri averaged an AQI of 81 while Siwan averaged 148 — a 67-point (83%) gap, with Siwan the more polluted and Siliguri the cleaner of the two. On 448 days when both cities reported, Siliguri was cleaner on 399 of them; the average daily gap was 109 AQI points.
Seasonality & days
Siliguri peaks in February, while Siwan peaks in January. Siliguri logged 0.1% Severe days and 61.8% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Siliguri 180 days, Siwan 13 days.
Year-over-year progress
Siliguri has improved by 39 AQI points (32.5%) from 2018 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Siliguri reached AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Siliguri spans 1 CPCB stations with a 0-point spread (min 107, max 107); Siwan spans 1 stations with a 0-point spread (min 197, max 197).