Bettiah vs Mumbai
Side-by-side air quality comparison between Bettiah and Mumbai.
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 Mumbai averaged 93 — a 34-point (37%) gap, with Bettiah the more polluted and Mumbai the cleaner of the two. On 527 days when both cities reported, Bettiah was cleaner on 362 of them; the average daily gap was 89 AQI points.
Seasonality & days
Bettiah peaks in November, while Mumbai peaks in December. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Mumbai 58 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).