Begusarai vs Sagar
Side-by-side air quality comparison between Begusarai and Sagar.
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 | Sagar |
|---|---|---|
| PM2.5(µg/m³) | 95.90 | 24.90 |
| PM10(µg/m³) | 109.00 | 41.00 |
| NO₂(µg/m³) | 51.40 | 11.80 |
| SO₂(µg/m³) | 17.30 | 4.10 |
| O₃(µg/m³) | 29.00 | 61.00 |
| CO(µg/m³) | 672.00 | 211.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Sagar averaged 96 — a 32-point (33%) gap, with Begusarai the more polluted and Sagar the cleaner of the two. On 130 days when both cities reported, Begusarai was cleaner on 77 of them; the average daily gap was 52 AQI points.
Seasonality & days
Begusarai peaks in January, while Sagar peaks in November. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Sagar was 0% Severe and 69.9% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Sagar 57 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Sagar has worsened by 24 AQI points (33.3%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Sagar hit AQI 347 at Civil Lines (MPPCB) on 2024-12-25.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Sagar spans 2 stations with a 45-point spread (min 73, max 118).
Verdict
🏆 Sagar has better air quality with an AQI of 42 compared to Begusarai's 220. That's a significant difference of 178 points.