Nagpur vs Purnia
Side-by-side air quality comparison between Nagpur 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 | Nagpur | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 20.30 | 112.00 |
| PM10(µg/m³) | 25.30 | 115.70 |
| NO₂(µg/m³) | 23.20 | 31.10 |
| SO₂(µg/m³) | 12.30 | 18.40 |
| O₃(µg/m³) | 42.00 | 42.00 |
| CO(µg/m³) | 174.00 | 756.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nagpur averaged an AQI of 104 while Purnia averaged 133 — a 29-point (28%) gap, with Purnia the more polluted and Nagpur the cleaner of the two. On 584 days when both cities reported, Nagpur was cleaner on 409 of them; the average daily gap was 81 AQI points.
Seasonality & days
Nagpur peaks in November, while Purnia peaks in January. Nagpur logged 0% Severe days and 60.599999999999994% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Nagpur 68 days, Purnia 14 days.
Year-over-year progress
Nagpur has improved by 37 AQI points (26.2%) from 2017 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Nagpur reached AQI 342 at Opp GPO Civil Lines (MPCB) on 2022-12-03; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Nagpur spans 4 CPCB stations with a 9-point spread (min 98, max 107); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Nagpur has better air quality with an AQI of 34 compared to Purnia's 274. That's a significant difference of 240 points.