Bhagalpur vs Haldia
Side-by-side air quality comparison between Bhagalpur and Haldia.
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 | Bhagalpur | Haldia |
|---|---|---|
| PM2.5(µg/m³) | 56.20 | 46.60 |
| PM10(µg/m³) | 62.60 | 51.90 |
| NO₂(µg/m³) | 14.10 | 11.40 |
| SO₂(µg/m³) | 24.00 | 10.40 |
| O₃(µg/m³) | 121.00 | 96.00 |
| CO(µg/m³) | 527.00 | 284.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhagalpur averaged an AQI of 164 while Haldia averaged 90 — a 74-point (82%) gap, with Bhagalpur the more polluted and Haldia the cleaner of the two. On 679 days when both cities reported, Haldia was cleaner on 628 of them; the average daily gap was 105 AQI points.
Seasonality & days
Bhagalpur peaks in January, while Haldia peaks in December. Bhagalpur logged 1.9% Severe days and 19.9% Good-or-Satisfactory days; Haldia was 0% Severe and 65.4% Good-or-Satisfactory. Longest clean-air streaks: Bhagalpur 20 days, Haldia 51 days.
Year-over-year progress
Bhagalpur has improved by 123 AQI points (42.9%) from 2021 to 2024; Haldia has worsened by 8 AQI points (9.8%) over the same window. The worst recorded day for Bhagalpur reached AQI 451 at Mayaganj (BSPCB) on 2022-12-30; Haldia hit AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26.
Station-level disparity
Bhagalpur spans 2 CPCB stations with a 26-point spread (min 170, max 196); Haldia spans 1 stations with a 0-point spread (min 86, max 86).
Verdict
🏆 Haldia has better air quality with an AQI of 78 compared to Bhagalpur's 94.