Bettiah vs Shillong
Side-by-side air quality comparison between Bettiah and Shillong.
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 Shillong averaged 75 — a 52-point (69%) gap, with Bettiah the more polluted and Shillong the cleaner of the two. On 383 days when both cities reported, Shillong was cleaner on 333 of them; the average daily gap was 126 AQI points.
Seasonality & days
Bettiah peaks in November, while Shillong peaks in February. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Shillong 113 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Shillong spans 2 stations with a 2-point spread (min 42, max 44).