Alwar vs Siwan
Side-by-side air quality comparison between Alwar 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Alwar averaged an AQI of 88 while Siwan averaged 148 — a 60-point (68%) gap, with Siwan the more polluted and Alwar the cleaner of the two. On 804 days when both cities reported, Alwar was cleaner on 704 of them; the average daily gap was 110 AQI points.
Seasonality & days
Alwar peaks in November, while Siwan peaks in January. Alwar logged 0% Severe days and 70.2% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Alwar 97 days, Siwan 13 days.
Year-over-year progress
Alwar has improved by 125 AQI points (58.7%) from 2017 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Alwar reached AQI 356 at Moti Doongri (RSPCB) on 2017-11-11; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Alwar spans 1 CPCB stations with a 0-point spread (min 95, max 95); Siwan spans 1 stations with a 0-point spread (min 197, max 197).