Purnia vs Shivamogga
Side-by-side air quality comparison between Purnia and Shivamogga.
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 | Purnia | Shivamogga |
|---|---|---|
| PM2.5(µg/m³) | 105.90 | 6.90 |
| PM10(µg/m³) | 109.00 | 9.10 |
| NO₂(µg/m³) | 25.20 | 5.20 |
| SO₂(µg/m³) | 20.10 | 1.90 |
| O₃(µg/m³) | 67.00 | 35.00 |
| CO(µg/m³) | 707.00 | 137.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Purnia averaged an AQI of 133 while Shivamogga averaged 55 — a 78-point (142%) gap, with Purnia the more polluted and Shivamogga the cleaner of the two. On 860 days when both cities reported, Shivamogga was cleaner on 824 of them; the average daily gap was 121 AQI points.
Seasonality & days
Purnia peaks in January, while Shivamogga peaks in February. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Shivamogga was 0% Severe and 97.5% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Shivamogga 233 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Shivamogga has improved by 16 AQI points (22.5%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Shivamogga hit AQI 202 at Vinoba Nagara (KSPCB) on 2021-08-04.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Shivamogga spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Shivamogga has better air quality with an AQI of 12 compared to Purnia's 253. That's a significant difference of 241 points.