Begusarai vs Siliguri
Side-by-side air quality comparison between Begusarai and Siliguri.
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 | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 93.40 | 77.80 |
| PM10(µg/m³) | 103.60 | 98.30 |
| NO₂(µg/m³) | 41.50 | 11.30 |
| SO₂(µg/m³) | 17.90 | 6.80 |
| O₃(µg/m³) | 64.00 | 115.00 |
| CO(µg/m³) | 637.00 | 523.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Siliguri averaged 81 — a 47-point (58%) gap, with Begusarai the more polluted and Siliguri the cleaner of the two. On 129 days when both cities reported, Siliguri was cleaner on 102 of them; the average daily gap was 70 AQI points.
Seasonality & days
Begusarai peaks in January, while Siliguri peaks in February. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Siliguri 180 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Siliguri has better air quality with an AQI of 160 compared to Begusarai's 212. That's a significant difference of 52 points.