Siwan vs Visakhapatnam
Side-by-side air quality comparison between Siwan and Visakhapatnam.
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 Visakhapatnam averaged 110 — a 38-point (35%) gap, with Siwan the more polluted and Visakhapatnam the cleaner of the two. On 755 days when both cities reported, Visakhapatnam was cleaner on 563 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; Visakhapatnam was 0% Severe and 50.1% Good-or-Satisfactory. Longest clean-air streaks: Siwan 13 days, Visakhapatnam 27 days.
Year-over-year progress
Siwan has improved by 184 AQI points (55.4%) from 2021 to 2024; Visakhapatnam has worsened by 15 AQI points (15.8%) over the same window. The worst recorded day for Siwan reached AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30; Visakhapatnam hit AQI 341 at GVM Corporation (APPCB) on 2019-01-14.
Station-level disparity
Siwan spans 1 CPCB stations with a 0-point spread (min 197, max 197); Visakhapatnam spans 1 stations with a 0-point spread (min 111, max 111).