Bhilai vs Kalyān
Side-by-side air quality comparison between Bhilai and Kalyān.
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 | Bhilai | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 46.40 | 23.70 |
| PM10(µg/m³) | 52.30 | 40.90 |
| NO₂(µg/m³) | 43.70 | 20.60 |
| SO₂(µg/m³) | 70.60 | 23.00 |
| O₃(µg/m³) | 42.00 | 23.00 |
| CO(µg/m³) | 675.00 | 186.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhilai averaged an AQI of 73 while Kalyān averaged 95 — a 22-point (30%) gap, with Kalyān the more polluted and Bhilai the cleaner of the two. On 441 days when both cities reported, Bhilai was cleaner on 305 of them; the average daily gap was 50 AQI points.
Seasonality & days
Bhilai peaks in November, while Kalyān peaks in January. Bhilai logged 0% Severe days and 71.6% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Bhilai 119 days, Kalyān 78 days.
Year-over-year progress
Bhilai has worsened by 8 AQI points (12.3%) from 2021 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Bhilai reached AQI 288 at Hathkhoj (CECB) on 2023-12-26; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Bhilai spans 3 CPCB stations with a 25-point spread (min 59, max 84); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).
Verdict
🏆 Kalyān has better air quality with an AQI of 41 compared to Bhilai's 78.