Angul vs Katihar
Side-by-side air quality comparison between Angul 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 | Angul | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 65.90 | 109.20 |
| PM10(µg/m³) | 72.20 | 114.30 |
| NO₂(µg/m³) | 25.60 | 31.10 |
| SO₂(µg/m³) | 5.80 | 18.30 |
| O₃(µg/m³) | 19.00 | 43.00 |
| CO(µg/m³) | 715.00 | 770.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Angul averaged an AQI of 149 while Katihar averaged 123 — a 26-point (21%) gap, with Angul the more polluted and Katihar the cleaner of the two. On 340 days when both cities reported, Katihar was cleaner on 229 of them; the average daily gap was 63 AQI points.
Seasonality & days
Angul peaks in January, while Katihar peaks in December. Angul logged 0% Severe days and 32.1% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Angul 23 days, Katihar 19 days.
Year-over-year progress
Angul has improved by 89 AQI points (37.4%) from 2023 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Angul reached AQI 370 at Hakimapada (OSPCB) on 2024-01-29; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Angul spans 1 CPCB stations with a 0-point spread (min 163, max 163); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Angul has better air quality with an AQI of 120 compared to Katihar's 264. That's a significant difference of 144 points.