Katihar vs Mumbai
Side-by-side air quality comparison between Katihar 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, Katihar averaged an AQI of 123 while Mumbai averaged 93 — a 30-point (32%) gap, with Katihar the more polluted and Mumbai the cleaner of the two. On 638 days when both cities reported, Katihar was cleaner on 401 of them; the average daily gap was 76 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Mumbai 58 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).