Katihar vs Tumkur
Side-by-side air quality comparison between Katihar and Tumkur.
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 Tumkur averaged 88 — a 35-point (40%) gap, with Katihar the more polluted and Tumkur the cleaner of the two. On 451 days when both cities reported, Tumkur was cleaner on 314 of them; the average daily gap was 85 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; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Tumkur 20 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).