Haldia vs Kannur
Side-by-side air quality comparison between Haldia 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Haldia | Kannur |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 5.70 |
| PM10(µg/m³) | 51.90 | 11.30 |
| NO₂(µg/m³) | 11.40 | 3.30 |
| SO₂(µg/m³) | 10.40 | 1.10 |
| O₃(µg/m³) | 96.00 | 51.00 |
| CO(µg/m³) | 284.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Kannur averaged 65 — a 25-point (38%) gap, with Haldia the more polluted and Kannur the cleaner of the two. On 451 days when both cities reported, Kannur was cleaner on 255 of them; the average daily gap was 51 AQI points.
Seasonality & days
Haldia peaks in December, while Kannur peaks in February. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Kannur was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Kannur 103 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Kannur has worsened by 11 AQI points (20.4%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Kannur hit AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Kannur spans 1 stations with a 0-point spread (min 66, max 66).
Verdict
🏆 Kannur has better air quality with an AQI of 11 compared to Haldia's 78. That's a significant difference of 67 points.