Bhilai vs Howrah
Side-by-side air quality comparison between Bhilai and Howrah.
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 | Howrah |
|---|---|---|
| PM2.5(µg/m³) | 46.40 | 64.70 |
| PM10(µg/m³) | 52.30 | 69.40 |
| NO₂(µg/m³) | 43.70 | 18.10 |
| SO₂(µg/m³) | 70.60 | 13.10 |
| O₃(µg/m³) | 42.00 | 86.00 |
| CO(µg/m³) | 675.00 | 421.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhilai averaged an AQI of 73 while Howrah averaged 126 — a 53-point (73%) gap, with Howrah the more polluted and Bhilai the cleaner of the two. On 453 days when both cities reported, Bhilai was cleaner on 366 of them; the average daily gap was 99 AQI points.
Seasonality & days
Bhilai peaks in November, while Howrah peaks in December. Bhilai logged 0% Severe days and 71.6% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Bhilai 119 days, Howrah 120 days.
Year-over-year progress
Bhilai has worsened by 8 AQI points (12.3%) from 2021 to 2024; Howrah has improved by 32 AQI points (20.3%) over the same window. The worst recorded day for Bhilai reached AQI 288 at Hathkhoj (CECB) on 2023-12-26; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Bhilai spans 3 CPCB stations with a 25-point spread (min 59, max 84); Howrah spans 5 stations with a 116-point spread (min 111, max 227).
Verdict
🏆 Bhilai has better air quality with an AQI of 78 compared to Howrah's 117.