Haldia vs Hassan
Side-by-side air quality comparison between Haldia and Hassan.
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 | Hassan |
|---|---|---|
| PM2.5(µg/m³) | 50.20 | 2.60 |
| PM10(µg/m³) | 55.20 | 3.70 |
| NO₂(µg/m³) | 14.30 | 5.10 |
| SO₂(µg/m³) | 9.50 | 0.50 |
| O₃(µg/m³) | 79.00 | 34.00 |
| CO(µg/m³) | 280.00 | 117.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Hassan averaged 60 — a 30-point (50%) gap, with Haldia the more polluted and Hassan the cleaner of the two. On 460 days when both cities reported, Hassan was cleaner on 278 of them; the average daily gap was 42 AQI points.
Seasonality & days
Haldia peaks in December, while Hassan peaks in March. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Hassan was 0% Severe and 92.5% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Hassan 51 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Hassan has improved by 4 AQI points (6.2%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Hassan hit AQI 212 at BKatihalli (KSPCB) on 2024-05-11.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Hassan spans 1 stations with a 0-point spread (min 63, max 63).
Verdict
🏆 Hassan has better air quality with an AQI of 4 compared to Haldia's 84. That's a significant difference of 80 points.