Katihar vs Tirupati
Side-by-side air quality comparison between Katihar and Tirupati.
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 Tirupati averaged 75 — a 48-point (64%) gap, with Katihar the more polluted and Tirupati the cleaner of the two. On 432 days when both cities reported, Tirupati was cleaner on 373 of them; the average daily gap was 127 AQI points.
Seasonality & days
Katihar peaks in December, while Tirupati peaks in April. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Tirupati 36 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).