Gummidipoondi vs Katihar
Side-by-side air quality comparison between Gummidipoondi and Katihar.
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, Gummidipoondi averaged an AQI of 107 while Katihar averaged 123 — a 16-point (15%) gap, with Katihar the more polluted and Gummidipoondi the cleaner of the two. On 725 days when both cities reported, Gummidipoondi was cleaner on 527 of them; the average daily gap was 96 AQI points.
Seasonality & days
Gummidipoondi peaks in November, while Katihar peaks in December. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Katihar 19 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Katihar spans 1 stations with a 0-point spread (min 185, max 185).