Howrah vs Kannur
Side-by-side air quality comparison between Howrah and Kannur.
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, Howrah averaged an AQI of 126 while Kannur averaged 65 — a 61-point (94%) gap, with Howrah the more polluted and Kannur the cleaner of the two. On 1174 days when both cities reported, Kannur was cleaner on 955 of them; the average daily gap was 98 AQI points.
Seasonality & days
Howrah peaks in December, while Kannur peaks in February. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Kannur 103 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Kannur spans 1 stations with a 0-point spread (min 66, max 66).