Hajipur vs Kochi
Side-by-side air quality comparison between Hajipur and Kochi.
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 | Kochi |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 8.10 |
| PM10(µg/m³) | 111.80 | 10.50 |
| NO₂(µg/m³) | 49.30 | 9.10 |
| SO₂(µg/m³) | 18.10 | 2.60 |
| O₃(µg/m³) | 19.00 | 26.00 |
| CO(µg/m³) | 784.00 | 110.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hajipur averaged an AQI of 173 while Kochi averaged 91 — a 82-point (90%) gap, with Hajipur the more polluted and Kochi the cleaner of the two. On 1058 days when both cities reported, Kochi was cleaner on 800 of them; the average daily gap was 73 AQI points.
Seasonality & days
Hajipur peaks in December, while Kochi peaks in January. Hajipur logged 0.3% Severe days and 36.6% Good-or-Satisfactory days; Kochi was 0% Severe and 70.9% Good-or-Satisfactory. Longest clean-air streaks: Hajipur 36 days, Kochi 80 days.
Year-over-year progress
Hajipur has worsened by 74 AQI points (74.7%) from 2020 to 2024; Kochi has worsened by 7 AQI points (8.3%) over the same window. The worst recorded day for Hajipur reached AQI 427 at Industrial Area (BSPCB) on 2024-11-12; Kochi hit AQI 293 at Vyttila Kochi (PCB) on 2022-12-08.
Station-level disparity
Hajipur spans 1 CPCB stations with a 0-point spread (min 149, max 149); Kochi spans 1 stations with a 0-point spread (min 88, max 88).
Verdict
🏆 Kochi has better air quality with an AQI of 14 compared to Hajipur's 231. That's a significant difference of 217 points.