Katihar vs Nagpur
Side-by-side air quality comparison between Katihar and Nagpur.
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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Katihar | Nagpur |
|---|---|---|
| PM2.5(µg/m³) | 105.90 | 21.10 |
| PM10(µg/m³) | 109.00 | 26.60 |
| NO₂(µg/m³) | 25.20 | 20.80 |
| SO₂(µg/m³) | 20.10 | 15.00 |
| O₃(µg/m³) | 67.00 | 55.00 |
| CO(µg/m³) | 727.00 | 180.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Katihar averaged an AQI of 123 while Nagpur averaged 104 — a 19-point (18%) gap, with Katihar the more polluted and Nagpur the cleaner of the two. On 616 days when both cities reported, Nagpur was cleaner on 420 of them; the average daily gap was 86 AQI points.
Seasonality & days
Katihar peaks in December, while Nagpur peaks in November. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Nagpur was 0% Severe and 60.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Nagpur 68 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Nagpur has improved by 37 AQI points (26.2%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Nagpur hit AQI 342 at Opp GPO Civil Lines (MPCB) on 2022-12-03.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Nagpur spans 4 stations with a 9-point spread (min 98, max 107).
Verdict
🏆 Nagpur has better air quality with an AQI of 35 compared to Katihar's 253. That's a significant difference of 218 points.