Araria vs Siwan
Side-by-side air quality comparison between Araria 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 | Araria | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 98.70 | 114.60 |
| PM10(µg/m³) | 101.70 | 125.70 |
| NO₂(µg/m³) | 19.60 | 44.50 |
| SO₂(µg/m³) | 13.30 | 15.40 |
| O₃(µg/m³) | 69.00 | 54.00 |
| CO(µg/m³) | 760.00 | 761.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Araria averaged an AQI of 167 while Siwan averaged 148 — a 19-point (13%) gap, with Araria the more polluted and Siwan the cleaner of the two. On 654 days when both cities reported, Araria was cleaner on 404 of them; the average daily gap was 70 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Araria logged 0% Severe days and 28.5% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Araria 14 days, Siwan 13 days.
Year-over-year progress
Araria has improved by 61 AQI points (26.8%) from 2021 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Araria reached AQI 399 at Kharahiya Basti (BSPCB) on 2024-01-31; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Araria spans 1 CPCB stations with a 0-point spread (min 173, max 173); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Araria has better air quality with an AQI of 230 compared to Siwan's 282. That's a significant difference of 52 points.