Dūngarpur vs Siwan
Side-by-side air quality comparison between Dūngarpur 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 | Dūngarpur | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 24.30 | 114.60 |
| PM10(µg/m³) | 34.50 | 125.70 |
| NO₂(µg/m³) | 8.80 | 44.50 |
| SO₂(µg/m³) | 10.40 | 15.40 |
| O₃(µg/m³) | 44.00 | 54.00 |
| CO(µg/m³) | 142.00 | 761.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dūngarpur averaged an AQI of 108 while Siwan averaged 148 — a 40-point (37%) gap, with Siwan the more polluted and Dūngarpur the cleaner of the two. On 301 days when both cities reported, Dūngarpur was cleaner on 230 of them; the average daily gap was 65 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Dūngarpur logged 0% Severe days and 57.199999999999996% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Dūngarpur 24 days, Siwan 13 days.
Year-over-year progress
Dūngarpur has improved by 5 AQI points (4.4%) from 2023 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Dūngarpur reached AQI 314 at Bhoiwada (RSPCB) on 2024-01-01; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Dūngarpur spans 1 CPCB stations with a 0-point spread (min 109, max 109); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Dūngarpur has better air quality with an AQI of 41 compared to Siwan's 282. That's a significant difference of 241 points.