Dhanbad vs Siliguri
Side-by-side air quality comparison between Dhanbad and Siliguri.
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 | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 92.20 | 82.20 |
| PM10(µg/m³) | 100.10 | 105.70 |
| NO₂(µg/m³) | 60.10 | 15.40 |
| SO₂(µg/m³) | 187.20 | 6.50 |
| O₃(µg/m³) | 36.00 | 95.00 |
| CO(µg/m³) | 755.00 | 539.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dhanbad averaged an AQI of 161 while Siliguri averaged 81 — a 80-point (99%) gap, with Dhanbad the more polluted and Siliguri the cleaner of the two. On 219 days when both cities reported, Siliguri was cleaner on 185 of them; the average daily gap was 87 AQI points.
Seasonality & days
Dhanbad peaks in November, while Siliguri peaks in February. Dhanbad logged 0.4% Severe days and 3.1% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Dhanbad 2 days, Siliguri 180 days.
Year-over-year progress
The worst recorded day for Dhanbad reached AQI 436 at Kalakusuma (DMC) on 2024-04-28; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Dhanbad spans 2 CPCB stations with a 12-point spread (min 156, max 168); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Siliguri has better air quality with an AQI of 174 compared to Dhanbad's 208.