Bhopal vs Katihar
Side-by-side air quality comparison between Bhopal 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 | Bhopal | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 27.90 | 109.20 |
| PM10(µg/m³) | 45.20 | 114.30 |
| NO₂(µg/m³) | 6.80 | 31.10 |
| SO₂(µg/m³) | 5.70 | 18.30 |
| O₃(µg/m³) | 67.00 | 43.00 |
| CO(µg/m³) | 260.00 | 770.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhopal averaged an AQI of 114 while Katihar averaged 123 — a 9-point (8%) gap, with Katihar the more polluted and Bhopal the cleaner of the two. On 629 days when both cities reported, Bhopal was cleaner on 410 of them; the average daily gap was 75 AQI points.
Seasonality & days
Bhopal peaks in November, while Katihar peaks in December. Bhopal logged 0% Severe days and 38.4% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Bhopal 47 days, Katihar 19 days.
Year-over-year progress
Bhopal has improved by 39 AQI points (25.5%) from 2019 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Bhopal reached AQI 392 at T T Nagar (MPPCB) on 2022-01-06; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Bhopal spans 3 CPCB stations with a 18-point spread (min 111, max 129); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Bhopal has better air quality with an AQI of 47 compared to Katihar's 264. That's a significant difference of 217 points.