Kishanganj vs Siwan
Side-by-side air quality comparison between Kishanganj 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 | Kishanganj | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 85.40 | 114.60 |
| PM10(µg/m³) | 88.50 | 125.70 |
| NO₂(µg/m³) | 13.00 | 44.50 |
| SO₂(µg/m³) | 11.50 | 15.40 |
| O₃(µg/m³) | 88.00 | 54.00 |
| CO(µg/m³) | 750.00 | 761.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kishanganj averaged an AQI of 144 while Siwan averaged 148 — a 4-point (3%) gap, with Siwan the more polluted and Kishanganj the cleaner of the two. On 718 days when both cities reported, Kishanganj was cleaner on 483 of them; the average daily gap was 70 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kishanganj logged 0.2% Severe days and 37.099999999999994% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Kishanganj 23 days, Siwan 13 days.
Year-over-year progress
Kishanganj has improved by 136 AQI points (48.6%) from 2021 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Kishanganj reached AQI 417 at SDM Office Khagra (BSPCB) on 2022-02-01; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Kishanganj spans 1 CPCB stations with a 0-point spread (min 156, max 156); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Kishanganj has better air quality with an AQI of 185 compared to Siwan's 282. That's a significant difference of 97 points.