Katihar vs Nayāgarh
Side-by-side air quality comparison between Katihar and Nayāgarh.
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 Nayāgarh averaged 98 — a 25-point (26%) gap, with Katihar the more polluted and Nayāgarh the cleaner of the two. On 560 days when both cities reported, Nayāgarh was cleaner on 414 of them; the average daily gap was 79 AQI points.
Seasonality & days
Katihar peaks in December, while Nayāgarh peaks in April. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Nayāgarh was 0% Severe and 47.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Nayāgarh 52 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Nayāgarh has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Nayāgarh hit AQI 336 at Dabuna (OSPCB) on 2023-03-13.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Nayāgarh spans 1 stations with a 0-point spread (min 116, max 116).