Muzaffarpur vs Siwan
Side-by-side air quality comparison between Muzaffarpur 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, Muzaffarpur averaged an AQI of 151 while Siwan averaged 148 — a 3-point (2%) gap, with Muzaffarpur the more polluted and Siwan the cleaner of the two. On 802 days when both cities reported, Siwan was cleaner on 447 of them; the average daily gap was 59 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Muzaffarpur logged 4.5% Severe days and 30.900000000000002% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Muzaffarpur 26 days, Siwan 13 days.
Year-over-year progress
Muzaffarpur has improved by 62 AQI points (29.1%) from 2016 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Muzaffarpur reached AQI 482 at Collectorate (BSPCB) on 2016-01-01; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Muzaffarpur spans 3 CPCB stations with a 14-point spread (min 171, max 185); Siwan spans 1 stations with a 0-point spread (min 197, max 197).