Bihar Sharif vs Haldia
Side-by-side air quality comparison between Bihar Sharif 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, Bihar Sharif averaged an AQI of 115 while Haldia averaged 90 — a 25-point (28%) gap, with Bihar Sharif the more polluted and Haldia the cleaner of the two. On 570 days when both cities reported, Haldia was cleaner on 377 of them; the average daily gap was 49 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Haldia was 0% Severe and 65.4% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Haldia 51 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Haldia has worsened by 8 AQI points (9.8%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Haldia hit AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Haldia spans 1 stations with a 0-point spread (min 86, max 86).