Dhanbad vs Ramanathapuram
Side-by-side air quality comparison between Dhanbad and Ramanathapuram.
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 | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 89.90 | 5.80 |
| PM10(µg/m³) | 96.90 | 8.80 |
| NO₂(µg/m³) | 54.10 | 4.80 |
| SO₂(µg/m³) | 171.70 | 4.10 |
| O₃(µg/m³) | 60.00 | 31.00 |
| CO(µg/m³) | 495.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dhanbad averaged an AQI of 161 while Ramanathapuram averaged 42 — a 119-point (283%) gap, with Dhanbad the more polluted and Ramanathapuram the cleaner of the two. On 160 days when both cities reported, Ramanathapuram was cleaner on 159 of them; the average daily gap was 127 AQI points.
Seasonality & days
Dhanbad peaks in November, while Ramanathapuram peaks in January. Dhanbad logged 0.4% Severe days and 3.1% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Dhanbad 2 days, Ramanathapuram 46 days.
Year-over-year progress
The worst recorded day for Dhanbad reached AQI 436 at Kalakusuma (DMC) on 2024-04-28; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Dhanbad spans 2 CPCB stations with a 12-point spread (min 156, max 168); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 10 compared to Dhanbad's 200. That's a significant difference of 190 points.