Kannur vs Purnia
Side-by-side air quality comparison between Kannur 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, Kannur averaged an AQI of 65 while Purnia averaged 133 — a 68-point (105%) gap, with Purnia the more polluted and Kannur the cleaner of the two. On 688 days when both cities reported, Kannur was cleaner on 624 of them; the average daily gap was 126 AQI points.
Seasonality & days
Kannur peaks in February, while Purnia peaks in January. Kannur logged 0% Severe days and 92% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Kannur 103 days, Purnia 14 days.
Year-over-year progress
Kannur has worsened by 11 AQI points (20.4%) from 2020 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Kannur reached AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Kannur spans 1 CPCB stations with a 0-point spread (min 66, max 66); Purnia spans 1 stations with a 0-point spread (min 176, max 176).