Davanagere vs Siwan
Side-by-side air quality comparison between Davanagere 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 | Davanagere | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 6.60 | 108.00 |
| PM10(µg/m³) | 8.90 | 122.50 |
| NO₂(µg/m³) | 8.10 | 59.80 |
| SO₂(µg/m³) | 2.00 | 14.10 |
| O₃(µg/m³) | 32.00 | 4.00 |
| CO(µg/m³) | 159.00 | 856.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Davanagere averaged an AQI of 57 while Siwan averaged 148 — a 91-point (160%) gap, with Siwan the more polluted and Davanagere the cleaner of the two. On 650 days when both cities reported, Davanagere was cleaner on 633 of them; the average daily gap was 132 AQI points.
Seasonality & days
Davanagere peaks in March, while Siwan peaks in January. Davanagere logged 0% Severe days and 89.6% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Davanagere 35 days, Siwan 13 days.
Year-over-year progress
Davanagere has worsened by 5 AQI points (9.6%) from 2021 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Davanagere reached AQI 233 at Devaraj Urs Badavane (KSPCB) on 2023-11-15; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Davanagere spans 1 CPCB stations with a 0-point spread (min 57, max 57); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Davanagere has better air quality with an AQI of 11 compared to Siwan's 260. That's a significant difference of 249 points.