Begusarai vs Purnia
Side-by-side air quality comparison between Begusarai 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 | Begusarai | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 93.40 | 105.90 |
| PM10(µg/m³) | 103.60 | 109.00 |
| NO₂(µg/m³) | 41.50 | 25.20 |
| SO₂(µg/m³) | 17.90 | 20.10 |
| O₃(µg/m³) | 64.00 | 67.00 |
| CO(µg/m³) | 637.00 | 707.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Purnia averaged 133 — a 5-point (4%) gap, with Purnia the more polluted and Begusarai the cleaner of the two. On 268 days when both cities reported, Purnia was cleaner on 181 of them; the average daily gap was 73 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Purnia 14 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Begusarai has better air quality with an AQI of 212 compared to Purnia's 253.