Siwan vs Sonipat
Side-by-side air quality comparison between Siwan and Sonipat.
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 | Siwan | Sonipat |
|---|---|---|
| PM2.5(µg/m³) | 108.00 | 77.50 |
| PM10(µg/m³) | 122.50 | 154.10 |
| NO₂(µg/m³) | 59.80 | 50.80 |
| SO₂(µg/m³) | 14.10 | 35.90 |
| O₃(µg/m³) | 4.00 | 47.00 |
| CO(µg/m³) | 856.00 | 689.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Siwan averaged an AQI of 148 while Sonipat averaged 134 — a 14-point (10%) gap, with Siwan the more polluted and Sonipat the cleaner of the two. On 576 days when both cities reported, Sonipat was cleaner on 354 of them; the average daily gap was 93 AQI points.
Seasonality & days
Siwan peaks in January, while Sonipat peaks in November. Siwan logged 5.2% Severe days and 17.7% Good-or-Satisfactory days; Sonipat was 0.8% Severe and 26.5% Good-or-Satisfactory. Longest clean-air streaks: Siwan 13 days, Sonipat 21 days.
Year-over-year progress
Siwan has improved by 184 AQI points (55.4%) from 2021 to 2024; Sonipat has improved by 220 AQI points (62.1%) over the same window. The worst recorded day for Siwan reached AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30; Sonipat hit AQI 455 at Murthal (HSPCB) on 2023-11-03.
Station-level disparity
Siwan spans 1 CPCB stations with a 0-point spread (min 197, max 197); Sonipat spans 1 stations with a 0-point spread (min 162, max 162).
Verdict
🏆 Sonipat has better air quality with an AQI of 159 compared to Siwan's 260. That's a significant difference of 101 points.