Haldia vs Hisar
Side-by-side air quality comparison between Haldia and Hisar.
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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Haldia | Hisar |
|---|---|---|
| PM2.5(µg/m³) | 50.20 | 75.00 |
| PM10(µg/m³) | 55.20 | 231.00 |
| NO₂(µg/m³) | 14.30 | 42.00 |
| SO₂(µg/m³) | 9.50 | 7.20 |
| O₃(µg/m³) | 79.00 | 25.00 |
| CO(µg/m³) | 280.00 | 573.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Hisar averaged 136 — a 46-point (51%) gap, with Hisar the more polluted and Haldia the cleaner of the two. On 303 days when both cities reported, Haldia was cleaner on 246 of them; the average daily gap was 65 AQI points.
Seasonality & days
Haldia peaks in December, while Hisar peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Hisar was 1.6% Severe and 29.700000000000003% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Hisar 34 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Hisar has improved by 39 AQI points (22.3%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Hisar hit AQI 490 at Urban Estate-II (HSPCB) on 2019-11-02.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Hisar spans 1 stations with a 0-point spread (min 168, max 168).
Verdict
🏆 Haldia has better air quality with an AQI of 84 compared to Hisar's 187. That's a significant difference of 103 points.