Darbhanga vs Siwan
Side-by-side air quality comparison between Darbhanga and Siwan.
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 | Darbhanga | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 114.10 | 108.00 |
| PM10(µg/m³) | 129.90 | 122.50 |
| NO₂(µg/m³) | 56.30 | 59.80 |
| SO₂(µg/m³) | 18.30 | 14.10 |
| O₃(µg/m³) | 16.00 | 4.00 |
| CO(µg/m³) | 816.00 | 856.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2023, Darbhanga averaged an AQI of 365 while Siwan averaged 148 — a 217-point (147%) gap, with Darbhanga the more polluted and Siwan the cleaner of the two. On 263 days when both cities reported, Darbhanga was cleaner on 169 of them; the average daily gap was 40 AQI points.
Seasonality & days
Darbhanga peaks in December, while Siwan peaks in January. Darbhanga logged 7.1% Severe days and 26.9% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Darbhanga 20 days, Siwan 13 days.
Year-over-year progress
Darbhanga has worsened by 116 AQI points (46.6%) from 2021 to 2023; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Darbhanga reached AQI 473 at Town Hall Lal Bagh (BSPCB) on 2023-01-01; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Darbhanga spans 1 CPCB stations with a 0-point spread (min 208, max 208); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Siwan has better air quality with an AQI of 260 compared to Darbhanga's 281.