Bhilai vs Siwan
Side-by-side air quality comparison between Bhilai 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, Bhilai averaged an AQI of 73 while Siwan averaged 148 — a 75-point (103%) gap, with Siwan the more polluted and Bhilai the cleaner of the two. On 603 days when both cities reported, Bhilai was cleaner on 539 of them; the average daily gap was 106 AQI points.
Seasonality & days
Bhilai peaks in November, while Siwan peaks in January. Bhilai logged 0% Severe days and 71.6% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Bhilai 119 days, Siwan 13 days.
Year-over-year progress
Bhilai has worsened by 8 AQI points (12.3%) from 2021 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Bhilai reached AQI 288 at Hathkhoj (CECB) on 2023-12-26; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Bhilai spans 3 CPCB stations with a 25-point spread (min 59, max 84); Siwan spans 1 stations with a 0-point spread (min 197, max 197).