Katihar vs Ramanathapuram
Side-by-side air quality comparison between Katihar and Ramanathapuram.
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 Ramanathapuram averaged 42 — a 81-point (193%) gap, with Katihar the more polluted and Ramanathapuram the cleaner of the two. On 621 days when both cities reported, Ramanathapuram was cleaner on 591 of them; the average daily gap was 139 AQI points.
Seasonality & days
Katihar peaks in December, while Ramanathapuram peaks in January. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Ramanathapuram 46 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).