Dhanbad vs Howrah
Side-by-side air quality comparison between Dhanbad and Howrah.
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 | Howrah |
|---|---|---|
| PM2.5(µg/m³) | 92.20 | 68.70 |
| PM10(µg/m³) | 100.10 | 72.60 |
| NO₂(µg/m³) | 60.10 | 22.20 |
| SO₂(µg/m³) | 187.20 | 11.50 |
| O₃(µg/m³) | 36.00 | 55.00 |
| CO(µg/m³) | 755.00 | 360.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dhanbad averaged an AQI of 161 while Howrah averaged 126 — a 35-point (28%) gap, with Dhanbad the more polluted and Howrah the cleaner of the two. On 226 days when both cities reported, Howrah was cleaner on 131 of them; the average daily gap was 86 AQI points.
Seasonality & days
Dhanbad peaks in November, while Howrah peaks in December. Dhanbad logged 0.4% Severe days and 3.1% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Dhanbad 2 days, Howrah 120 days.
Year-over-year progress
The worst recorded day for Dhanbad reached AQI 436 at Kalakusuma (DMC) on 2024-04-28; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Dhanbad spans 2 CPCB stations with a 12-point spread (min 156, max 168); Howrah spans 5 stations with a 116-point spread (min 111, max 227).
Verdict
🏆 Howrah has better air quality with an AQI of 130 compared to Dhanbad's 208. That's a significant difference of 78 points.