Imphal vs Purnia
Side-by-side air quality comparison between Imphal and Purnia.
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, Imphal averaged an AQI of 110 while Purnia averaged 133 — a 23-point (21%) gap, with Purnia the more polluted and Imphal the cleaner of the two. On 432 days when both cities reported, Imphal was cleaner on 269 of them; the average daily gap was 78 AQI points.
Seasonality & days
Imphal peaks in October, while Purnia peaks in January. Imphal logged 1.1% Severe days and 49.400000000000006% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Imphal 103 days, Purnia 14 days.
Year-over-year progress
Imphal has worsened by 23 AQI points (26.4%) from 2022 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Imphal reached AQI 500 at University Imphal (PCB) on 2024-10-11; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Imphal spans 2 CPCB stations with a 4-point spread (min 97, max 101); Purnia spans 1 stations with a 0-point spread (min 176, max 176).