Chennai vs Dhanbad
Side-by-side air quality comparison between Chennai and Dhanbad.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Dhanbad averaged 161 — a 93-point (137%) gap, with Dhanbad the more polluted and Chennai the cleaner of the two. On 226 days when both cities reported, Chennai was cleaner on 211 of them; the average daily gap was 75 AQI points.
Seasonality & days
Chennai peaks in December, while Dhanbad peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Dhanbad was 0.4% Severe and 3.1% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Dhanbad 2 days.
Year-over-year progress
The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Dhanbad hit AQI 436 at Kalakusuma (DMC) on 2024-04-28.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Dhanbad spans 2 stations with a 12-point spread (min 156, max 168).