Hajipur vs Puducherry
Side-by-side air quality comparison between Hajipur and Puducherry.
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 | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 97.80 | 16.40 |
| PM10(µg/m³) | 109.40 | 19.20 |
| NO₂(µg/m³) | 40.50 | 18.50 |
| SO₂(µg/m³) | 18.90 | 8.80 |
| O₃(µg/m³) | 52.00 | 37.00 |
| CO(µg/m³) | 725.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hajipur averaged an AQI of 173 while Puducherry averaged 55 — a 118-point (215%) gap, with Hajipur the more polluted and Puducherry the cleaner of the two. On 1294 days when both cities reported, Puducherry was cleaner on 1185 of them; the average daily gap was 106 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; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Hajipur 36 days, Puducherry 117 days.
Year-over-year progress
Hajipur has worsened by 74 AQI points (74.7%) from 2020 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Hajipur reached AQI 427 at Industrial Area (BSPCB) on 2024-11-12; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Hajipur spans 1 CPCB stations with a 0-point spread (min 149, max 149); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Puducherry has better air quality with an AQI of 27 compared to Hajipur's 227. That's a significant difference of 200 points.