Angul vs Purnia
Side-by-side air quality comparison between Angul 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 | Angul | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 66.60 | 105.90 |
| PM10(µg/m³) | 72.90 | 109.00 |
| NO₂(µg/m³) | 20.10 | 25.20 |
| SO₂(µg/m³) | 10.00 | 20.10 |
| O₃(µg/m³) | 60.00 | 67.00 |
| CO(µg/m³) | 618.00 | 707.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Angul averaged an AQI of 149 while Purnia averaged 133 — a 16-point (12%) gap, with Angul the more polluted and Purnia the cleaner of the two. On 315 days when both cities reported, Purnia was cleaner on 204 of them; the average daily gap was 66 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Angul logged 0% Severe days and 32.1% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Angul 23 days, Purnia 14 days.
Year-over-year progress
Angul has improved by 89 AQI points (37.4%) from 2023 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Angul reached AQI 370 at Hakimapada (OSPCB) on 2024-01-29; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Angul spans 1 CPCB stations with a 0-point spread (min 163, max 163); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Angul has better air quality with an AQI of 123 compared to Purnia's 253. That's a significant difference of 130 points.