Begusarai vs Shillong
Side-by-side air quality comparison between Begusarai and Shillong.
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 | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 93.40 | 17.90 |
| PM10(µg/m³) | 103.60 | 21.40 |
| NO₂(µg/m³) | 41.50 | 3.10 |
| SO₂(µg/m³) | 17.90 | 6.20 |
| O₃(µg/m³) | 64.00 | 118.00 |
| CO(µg/m³) | 637.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Shillong averaged 75 — a 53-point (71%) gap, with Begusarai the more polluted and Shillong the cleaner of the two. On 47 days when both cities reported, Shillong was cleaner on 46 of them; the average daily gap was 84 AQI points.
Seasonality & days
Begusarai peaks in January, while Shillong peaks in February. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Shillong 113 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Begusarai's 212. That's a significant difference of 182 points.