Purnia vs Rājsamand
Side-by-side air quality comparison between Purnia and Rājsamand.
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 | Rājsamand |
|---|---|---|
| PM2.5(µg/m³) | 105.90 | 18.00 |
| PM10(µg/m³) | 109.00 | 29.30 |
| NO₂(µg/m³) | 25.20 | 4.70 |
| SO₂(µg/m³) | 20.10 | 3.90 |
| O₃(µg/m³) | 67.00 | 64.00 |
| CO(µg/m³) | 707.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Purnia averaged an AQI of 133 while Rājsamand averaged 88 — a 45-point (51%) gap, with Purnia the more polluted and Rājsamand the cleaner of the two. On 451 days when both cities reported, Rājsamand was cleaner on 301 of them; the average daily gap was 70 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Rājsamand was 0% Severe and 69.7% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Rājsamand 42 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Rājsamand has improved by 13 AQI points (12.9%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Rājsamand hit AQI 320 at Dhoinda (RSPCB) on 2024-08-28.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Rājsamand spans 1 stations with a 0-point spread (min 94, max 94).
Verdict
🏆 Rājsamand has better air quality with an AQI of 30 compared to Purnia's 253. That's a significant difference of 223 points.