Dhanbad vs Katihar
Side-by-side air quality comparison between Dhanbad 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 | Dhanbad | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 89.90 | 105.90 |
| PM10(µg/m³) | 96.90 | 109.00 |
| NO₂(µg/m³) | 54.10 | 25.20 |
| SO₂(µg/m³) | 171.70 | 20.10 |
| O₃(µg/m³) | 60.00 | 67.00 |
| CO(µg/m³) | 495.00 | 727.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dhanbad averaged an AQI of 161 while Katihar averaged 123 — a 38-point (31%) gap, with Dhanbad the more polluted and Katihar the cleaner of the two. On 191 days when both cities reported, Katihar was cleaner on 130 of them; the average daily gap was 73 AQI points.
Seasonality & days
Dhanbad peaks in November, while Katihar peaks in December. Dhanbad logged 0.4% Severe days and 3.1% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Dhanbad 2 days, Katihar 19 days.
Year-over-year progress
The worst recorded day for Dhanbad reached AQI 436 at Kalakusuma (DMC) on 2024-04-28; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Dhanbad spans 2 CPCB stations with a 12-point spread (min 156, max 168); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Dhanbad has better air quality with an AQI of 200 compared to Katihar's 253. That's a significant difference of 53 points.