Purnia vs Raipur
Side-by-side air quality comparison between Purnia and Raipur.
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 | Raipur |
|---|---|---|
| PM2.5(µg/m³) | 105.90 | 46.40 |
| PM10(µg/m³) | 109.00 | 52.30 |
| NO₂(µg/m³) | 25.20 | 43.70 |
| SO₂(µg/m³) | 20.10 | 70.60 |
| O₃(µg/m³) | 67.00 | 42.00 |
| CO(µg/m³) | 707.00 | 484.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Purnia averaged an AQI of 133 while Raipur averaged 74 — a 59-point (80%) gap, with Purnia the more polluted and Raipur the cleaner of the two. On 552 days when both cities reported, Raipur was cleaner on 422 of them; the average daily gap was 77 AQI points.
Seasonality & days
Purnia peaks in January, while Raipur peaks in November. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Raipur was 0% Severe and 54.3% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Raipur 70 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Raipur has improved by 64 AQI points (46.4%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Raipur hit AQI 226 at AIIMS (CECB) on 2023-12-26.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Raipur spans 4 stations with a 42-point spread (min 63, max 105).
Verdict
🏆 Raipur has better air quality with an AQI of 78 compared to Purnia's 253. That's a significant difference of 175 points.