Haldia vs Karnal
Side-by-side air quality comparison between Haldia and Karnal.
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 Karnal averaged 102 — a 12-point (13%) gap, with Karnal the more polluted and Haldia the cleaner of the two. On 657 days when both cities reported, Haldia was cleaner on 424 of them; the average daily gap was 47 AQI points.
Seasonality & days
Haldia peaks in December, while Karnal peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Karnal was 0.1% Severe and 46.2% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Karnal 53 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Karnal has improved by 71 AQI points (41%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Karnal hit AQI 456 at Sector-12 (HSPCB) on 2019-11-03.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Karnal spans 1 stations with a 0-point spread (min 128, max 128).