Bettiah vs Chapra
Side-by-side air quality comparison between Bettiah and Chapra.
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 Chapra averaged 149 — a 22-point (17%) gap, with Chapra the more polluted and Bettiah the cleaner of the two. On 684 days when both cities reported, Bettiah was cleaner on 407 of them; the average daily gap was 64 AQI points.
Seasonality & days
Bettiah peaks in November, while Chapra peaks in January. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Chapra was 2.4% Severe and 26.8% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Chapra 14 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Chapra has improved by 181 AQI points (54.8%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Chapra hit AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Chapra spans 1 stations with a 0-point spread (min 195, max 195).