Haldia vs Prayagraj
Side-by-side air quality comparison between Haldia and Prayagraj.
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 Prayagraj averaged 80 — a 10-point (13%) gap, with Haldia the more polluted and Prayagraj the cleaner of the two. On 358 days when both cities reported, Haldia was cleaner on 222 of them; the average daily gap was 44 AQI points.
Seasonality & days
Haldia peaks in December, while Prayagraj peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Prayagraj 69 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).