Kanchipuram vs Siwan
Side-by-side air quality comparison between Kanchipuram 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, Kanchipuram averaged an AQI of 51 while Siwan averaged 148 — a 97-point (190%) gap, with Siwan the more polluted and Kanchipuram the cleaner of the two. On 300 days when both cities reported, Kanchipuram was cleaner on 292 of them; the average daily gap was 157 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Siwan peaks in January. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Siwan 13 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Siwan spans 1 stations with a 0-point spread (min 197, max 197).