Balasore vs Purnia
Side-by-side air quality comparison between Balasore 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 | Balasore | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 71.70 | 112.00 |
| PM10(µg/m³) | 79.20 | 115.70 |
| NO₂(µg/m³) | 27.60 | 31.10 |
| SO₂(µg/m³) | 6.70 | 18.40 |
| O₃(µg/m³) | 27.00 | 42.00 |
| CO(µg/m³) | 554.00 | 756.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Balasore averaged an AQI of 131 while Purnia averaged 133 — a 2-point (2%) gap, with Purnia the more polluted and Balasore the cleaner of the two. On 327 days when both cities reported, Purnia was cleaner on 168 of them; the average daily gap was 62 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Balasore logged 0.2% Severe days and 42.9% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Balasore 29 days, Purnia 14 days.
Year-over-year progress
Balasore has improved by 58 AQI points (30.7%) from 2023 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Balasore reached AQI 406 at Kalidaspur (OSPCB) on 2024-01-16; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Balasore spans 1 CPCB stations with a 0-point spread (min 141, max 141); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Balasore has better air quality with an AQI of 140 compared to Purnia's 274. That's a significant difference of 134 points.