Ahmednagar vs Katihar
Side-by-side air quality comparison between Ahmednagar 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Ahmednagar | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 15.10 | 109.20 |
| PM10(µg/m³) | 27.90 | 114.30 |
| NO₂(µg/m³) | 9.70 | 31.10 |
| SO₂(µg/m³) | 9.90 | 18.30 |
| O₃(µg/m³) | 33.00 | 43.00 |
| CO(µg/m³) | 127.00 | 770.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ahmednagar averaged an AQI of 109 while Katihar averaged 123 — a 14-point (13%) gap, with Katihar the more polluted and Ahmednagar the cleaner of the two. On 375 days when both cities reported, Ahmednagar was cleaner on 246 of them; the average daily gap was 63 AQI points.
Seasonality & days
Ahmednagar peaks in November, while Katihar peaks in December. Ahmednagar logged 0% Severe days and 50.1% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Ahmednagar 13 days, Katihar 19 days.
Year-over-year progress
Ahmednagar has worsened by 15 AQI points (16%) from 2023 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Ahmednagar reached AQI 259 at Tarakpur (MPCB) on 2024-12-18; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Ahmednagar spans 1 CPCB stations with a 0-point spread (min 104, max 104); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Ahmednagar has better air quality with an AQI of 28 compared to Katihar's 264. That's a significant difference of 236 points.