Haldia vs Mangalore
Side-by-side air quality comparison between Haldia and Mangalore.
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 | Mangalore |
|---|---|---|
| PM2.5(µg/m³) | 40.20 | 8.60 |
| PM10(µg/m³) | 46.90 | 15.20 |
| NO₂(µg/m³) | 7.00 | 5.00 |
| SO₂(µg/m³) | 11.40 | 1.90 |
| O₃(µg/m³) | 122.00 | 50.00 |
| CO(µg/m³) | 287.00 | 177.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Mangalore averaged 61 — a 29-point (48%) gap, with Haldia the more polluted and Mangalore the cleaner of the two. On 647 days when both cities reported, Mangalore was cleaner on 342 of them; the average daily gap was 36 AQI points.
Seasonality & days
Haldia peaks in December, while Mangalore peaks in February. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Mangalore was 0% Severe and 87.2% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Mangalore 64 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Mangalore has improved by 9 AQI points (12.9%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Mangalore hit AQI 235 at Kadri (KSPCB) on 2023-11-17.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Mangalore spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Mangalore has better air quality with an AQI of 15 compared to Haldia's 68. That's a significant difference of 53 points.