Bettiah vs Siliguri
Side-by-side air quality comparison between Bettiah 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, Bettiah averaged an AQI of 127 while Siliguri averaged 81 — a 46-point (57%) gap, with Bettiah the more polluted and Siliguri the cleaner of the two. On 485 days when both cities reported, Siliguri was cleaner on 394 of them; the average daily gap was 90 AQI points.
Seasonality & days
Bettiah peaks in November, while Siliguri peaks in February. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Siliguri 180 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).