Koppal vs Purnia
Side-by-side air quality comparison between Koppal 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, Koppal averaged an AQI of 65 while Purnia averaged 133 — a 68-point (105%) gap, with Purnia the more polluted and Koppal the cleaner of the two. On 691 days when both cities reported, Koppal was cleaner on 642 of them; the average daily gap was 115 AQI points.
Seasonality & days
Koppal peaks in February, while Purnia peaks in January. Koppal logged 0% Severe days and 85.5% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Koppal 47 days, Purnia 14 days.
Year-over-year progress
Koppal has improved by 31 AQI points (32.3%) from 2020 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Koppal reached AQI 384 at Diwator Nagar (KSPCB) on 2023-02-16; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Koppal spans 1 CPCB stations with a 0-point spread (min 70, max 70); Purnia spans 1 stations with a 0-point spread (min 176, max 176).