Purnia vs Vijayawada
Side-by-side air quality comparison between Purnia and Vijayawada.
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 | Vijayawada |
|---|---|---|
| PM2.5(µg/m³) | 112.00 | 18.50 |
| PM10(µg/m³) | 115.70 | 20.40 |
| NO₂(µg/m³) | 31.10 | 9.60 |
| SO₂(µg/m³) | 18.40 | 6.00 |
| O₃(µg/m³) | 42.00 | 73.00 |
| CO(µg/m³) | 756.00 | 276.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Purnia averaged an AQI of 133 while Vijayawada averaged 64 — a 69-point (108%) gap, with Purnia the more polluted and Vijayawada the cleaner of the two. On 421 days when both cities reported, Vijayawada was cleaner on 338 of them; the average daily gap was 85 AQI points.
Seasonality & days
Purnia peaks in January, while Vijayawada peaks in February. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Vijayawada was 0.2% Severe and 86.8% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Vijayawada 72 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Vijayawada has improved by 21 AQI points (24.7%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Vijayawada hit AQI 500 at Kanuru (APPCB) on 2023-04-04.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Vijayawada spans 5 stations with a 9-point spread (min 65, max 74).
Verdict
🏆 Vijayawada has better air quality with an AQI of 31 compared to Purnia's 274. That's a significant difference of 243 points.