Purnia vs Silchar
Side-by-side air quality comparison between Purnia and Silchar.
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, Purnia averaged an AQI of 133 while Silchar averaged 52 — a 81-point (156%) gap, with Purnia the more polluted and Silchar the cleaner of the two. On 524 days when both cities reported, Silchar was cleaner on 493 of them; the average daily gap was 109 AQI points.
Seasonality & days
Purnia peaks in January, while Silchar peaks in February. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Silchar 87 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Silchar spans 1 stations with a 0-point spread (min 47, max 47).