Hyderabad vs Siwan
Side-by-side air quality comparison between Hyderabad 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, Hyderabad averaged an AQI of 78 while Siwan averaged 148 — a 70-point (90%) gap, with Siwan the more polluted and Hyderabad the cleaner of the two. On 491 days when both cities reported, Hyderabad was cleaner on 326 of them; the average daily gap was 90 AQI points.
Seasonality & days
Hyderabad peaks in December, while Siwan peaks in January. Hyderabad logged 0.2% Severe days and 41.6% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Hyderabad 71 days, Siwan 13 days.
Year-over-year progress
Hyderabad has improved by 24 AQI points (23.5%) from 2016 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Hyderabad reached AQI 500 at Sanathnagar (TSPCB) on 2024-04-28; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Hyderabad spans 14 CPCB stations with a 35-point spread (min 62, max 97); Siwan spans 1 stations with a 0-point spread (min 197, max 197).