Hajipur vs Haldia
Side-by-side air quality comparison between Hajipur 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 | Hajipur | Haldia |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 50.20 |
| PM10(µg/m³) | 111.80 | 55.20 |
| NO₂(µg/m³) | 49.30 | 14.30 |
| SO₂(µg/m³) | 18.10 | 9.50 |
| O₃(µg/m³) | 19.00 | 79.00 |
| CO(µg/m³) | 784.00 | 280.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hajipur averaged an AQI of 173 while Haldia averaged 90 — a 83-point (92%) gap, with Hajipur the more polluted and Haldia the cleaner of the two. On 677 days when both cities reported, Haldia was cleaner on 625 of them; the average daily gap was 83 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Hajipur logged 0.3% Severe days and 36.6% Good-or-Satisfactory days; Haldia was 0% Severe and 65.4% Good-or-Satisfactory. Longest clean-air streaks: Hajipur 36 days, Haldia 51 days.
Year-over-year progress
Hajipur has worsened by 74 AQI points (74.7%) from 2020 to 2024; Haldia has worsened by 8 AQI points (9.8%) over the same window. The worst recorded day for Hajipur reached AQI 427 at Industrial Area (BSPCB) on 2024-11-12; Haldia hit AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26.
Station-level disparity
Hajipur spans 1 CPCB stations with a 0-point spread (min 149, max 149); Haldia spans 1 stations with a 0-point spread (min 86, max 86).
Verdict
🏆 Haldia has better air quality with an AQI of 84 compared to Hajipur's 231. That's a significant difference of 147 points.