Siwan vs Udaipur
Side-by-side air quality comparison between Siwan and Udaipur.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Siwan averaged an AQI of 148 while Udaipur averaged 112 — a 36-point (32%) gap, with Siwan the more polluted and Udaipur the cleaner of the two. On 801 days when both cities reported, Udaipur was cleaner on 638 of them; the average daily gap was 95 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Siwan logged 5.2% Severe days and 17.7% Good-or-Satisfactory days; Udaipur was 0% Severe and 47% Good-or-Satisfactory. Longest clean-air streaks: Siwan 13 days, Udaipur 49 days.
Year-over-year progress
Siwan has improved by 184 AQI points (55.4%) from 2021 to 2024; Udaipur has improved by 77 AQI points (40.7%) over the same window. The worst recorded day for Siwan reached AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30; Udaipur hit AQI 348 at Ashok Nagar (RSPCB) on 2021-11-15.
Station-level disparity
Siwan spans 1 CPCB stations with a 0-point spread (min 197, max 197); Udaipur spans 1 stations with a 0-point spread (min 112, max 112).