Bhiwāni vs Chennai
Side-by-side air quality comparison between Bhiwāni and Chennai.
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 | Bhiwāni | Chennai |
|---|---|---|
| PM2.5(µg/m³) | 62.60 | 11.70 |
| PM10(µg/m³) | 147.60 | 13.10 |
| NO₂(µg/m³) | 27.90 | 14.20 |
| SO₂(µg/m³) | 11.20 | 10.10 |
| O₃(µg/m³) | 61.00 | 56.00 |
| CO(µg/m³) | 474.00 | 308.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhiwāni averaged an AQI of 134 while Chennai averaged 68 — a 66-point (97%) gap, with Bhiwāni the more polluted and Chennai the cleaner of the two. On 1645 days when both cities reported, Chennai was cleaner on 1061 of them; the average daily gap was 69 AQI points.
Seasonality & days
Bhiwāni peaks in November, while Chennai peaks in December. Bhiwāni logged 0.6% Severe days and 36.4% Good-or-Satisfactory days; Chennai was 0% Severe and 57.5% Good-or-Satisfactory. Longest clean-air streaks: Bhiwāni 33 days, Chennai 53 days.
Year-over-year progress
Bhiwāni has improved by 15 AQI points (10.1%) from 2019 to 2024; Chennai has improved by 25 AQI points (26.9%) over the same window. The worst recorded day for Bhiwāni reached AQI 471 at HB Colony (HSPCB) on 2019-11-13; Chennai hit AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14.
Station-level disparity
Bhiwāni spans 1 CPCB stations with a 0-point spread (min 144, max 144); Chennai spans 9 stations with a 27-point spread (min 63, max 90).
Verdict
🏆 Chennai has better air quality with an AQI of 20 compared to Bhiwāni's 132. That's a significant difference of 112 points.