Hassan vs Patna
Side-by-side air quality comparison between Hassan and Patna.
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 | Hassan | Patna |
|---|---|---|
| PM2.5(µg/m³) | 2.60 | 99.00 |
| PM10(µg/m³) | 3.70 | 111.80 |
| NO₂(µg/m³) | 5.10 | 49.30 |
| SO₂(µg/m³) | 0.50 | 18.10 |
| O₃(µg/m³) | 34.00 | 19.00 |
| CO(µg/m³) | 117.00 | 704.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hassan averaged an AQI of 60 while Patna averaged 172 — a 112-point (187%) gap, with Patna the more polluted and Hassan the cleaner of the two. On 1027 days when both cities reported, Hassan was cleaner on 1009 of them; the average daily gap was 168 AQI points.
Seasonality & days
Hassan peaks in March, while Patna peaks in December. Hassan logged 0% Severe days and 92.5% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Hassan 51 days, Patna 30 days.
Year-over-year progress
Hassan has improved by 4 AQI points (6.2%) from 2021 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Hassan reached AQI 212 at BKatihalli (KSPCB) on 2024-05-11; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Hassan spans 1 CPCB stations with a 0-point spread (min 63, max 63); Patna spans 6 stations with a 39-point spread (min 154, max 193).
Verdict
🏆 Hassan has better air quality with an AQI of 4 compared to Patna's 231. That's a significant difference of 227 points.