Korba vs Siwan
Side-by-side air quality comparison between Korba 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 | Korba | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 49.20 | 108.00 |
| PM10(µg/m³) | 58.40 | 122.50 |
| NO₂(µg/m³) | 18.50 | 59.80 |
| SO₂(µg/m³) | 13.70 | 14.10 |
| O₃(µg/m³) | 64.00 | 4.00 |
| CO(µg/m³) | 435.00 | 856.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Korba averaged an AQI of 67 while Siwan averaged 148 — a 81-point (121%) gap, with Siwan the more polluted and Korba the cleaner of the two. On 531 days when both cities reported, Korba was cleaner on 486 of them; the average daily gap was 95 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Korba logged 0% Severe days and 78.8% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Korba 83 days, Siwan 13 days.
Year-over-year progress
Korba has improved by 19 AQI points (22.1%) from 2022 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Korba reached AQI 313 at Urja Nagar (CECB) on 2023-01-04; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Korba spans 2 CPCB stations with a 13-point spread (min 62, max 75); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Korba has better air quality with an AQI of 82 compared to Siwan's 260. That's a significant difference of 178 points.