Chapra vs Hajipur
Side-by-side air quality comparison between Chapra and Hajipur.
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 | Chapra | Hajipur |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 97.80 |
| PM10(µg/m³) | 117.10 | 109.40 |
| NO₂(µg/m³) | 42.70 | 40.50 |
| SO₂(µg/m³) | 15.30 | 18.90 |
| O₃(µg/m³) | 46.00 | 52.00 |
| CO(µg/m³) | 805.00 | 725.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Hajipur averaged 173 — a 24-point (16%) gap, with Hajipur the more polluted and Chapra the cleaner of the two. On 928 days when both cities reported, Hajipur was cleaner on 636 of them; the average daily gap was 67 AQI points.
Seasonality & days
Chapra peaks in January, while Hajipur peaks in December. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Hajipur was 0.3% Severe and 36.6% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Hajipur 36 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Hajipur has worsened by 74 AQI points (74.7%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Hajipur hit AQI 427 at Industrial Area (BSPCB) on 2024-11-12.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Hajipur spans 1 stations with a 0-point spread (min 149, max 149).
Verdict
🏆 Hajipur has better air quality with an AQI of 227 compared to Chapra's 244.