Bettiah vs Tālcher
Side-by-side air quality comparison between Bettiah and Tālcher.
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 Tālcher averaged 127 — a 0-point (0%) gap, with Tālcher the more polluted and Bettiah the cleaner of the two. On 467 days when both cities reported, Tālcher was cleaner on 371 of them; the average daily gap was 102 AQI points.
Seasonality & days
Bettiah peaks in November, while Tālcher peaks in December. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Tālcher was 0.2% Severe and 43.1% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Tālcher 44 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Tālcher has improved by 63 AQI points (33.2%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Tālcher hit AQI 414 at Talcher (OSPCB) on 2018-11-27.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Tālcher spans 1 stations with a 0-point spread (min 132, max 132).