Dewās vs Haldia
Side-by-side air quality comparison between Dewās 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, Dewās averaged an AQI of 98 while Haldia averaged 90 — a 8-point (9%) gap, with Dewās the more polluted and Haldia the cleaner of the two. On 627 days when both cities reported, Haldia was cleaner on 411 of them; the average daily gap was 44 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Haldia was 0% Severe and 65.4% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Haldia 51 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Haldia has worsened by 8 AQI points (9.8%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Haldia hit AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Haldia spans 1 stations with a 0-point spread (min 86, max 86).