Chapra vs Haldia
Side-by-side air quality comparison between Chapra and Haldia.
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, Chapra averaged an AQI of 149 while Haldia averaged 90 — a 59-point (66%) gap, with Chapra the more polluted and Haldia the cleaner of the two. On 597 days when both cities reported, Haldia was cleaner on 523 of them; the average daily gap was 102 AQI points.
Seasonality & days
Chapra peaks in January, while Haldia peaks in December. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Haldia was 0% Severe and 65.4% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Haldia 51 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Haldia has worsened by 8 AQI points (9.8%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Haldia hit AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Haldia spans 1 stations with a 0-point spread (min 86, max 86).