Haldia vs Katni
Side-by-side air quality comparison between Haldia and Katni.
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, Haldia averaged an AQI of 90 while Katni averaged 105 — a 15-point (17%) gap, with Katni the more polluted and Haldia the cleaner of the two. On 643 days when both cities reported, Haldia was cleaner on 486 of them; the average daily gap was 49 AQI points.
Seasonality & days
Haldia peaks in December, while Katni peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Katni was 0% Severe and 39.3% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Katni 62 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Katni has improved by 93 AQI points (47%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Katni hit AQI 350 at Gole Bazar (MPPCB) on 2019-11-01.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Katni spans 1 stations with a 0-point spread (min 137, max 137).