Kolhapur vs Purnia
Side-by-side air quality comparison between Kolhapur and Purnia.
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 | Kolhapur | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 13.60 | 105.90 |
| PM10(µg/m³) | 24.30 | 109.00 |
| NO₂(µg/m³) | 7.90 | 25.20 |
| SO₂(µg/m³) | 3.30 | 20.10 |
| O₃(µg/m³) | 37.00 | 67.00 |
| CO(µg/m³) | 130.00 | 707.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kolhapur averaged an AQI of 100 while Purnia averaged 133 — a 33-point (33%) gap, with Purnia the more polluted and Kolhapur the cleaner of the two. On 270 days when both cities reported, Kolhapur was cleaner on 142 of them; the average daily gap was 54 AQI points.
Seasonality & days
Kolhapur peaks in November, while Purnia peaks in January. Kolhapur logged 0% Severe days and 46.400000000000006% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Kolhapur 81 days, Purnia 14 days.
Year-over-year progress
The worst recorded day for Kolhapur reached AQI 321 at Shivaji University (MPCB) on 2024-11-12; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Kolhapur spans 2 CPCB stations with a 19-point spread (min 90, max 109); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Kolhapur has better air quality with an AQI of 24 compared to Purnia's 253. That's a significant difference of 229 points.