Bangalore vs Haldia
Side-by-side air quality comparison between Bangalore 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bangalore | Haldia |
|---|---|---|
| PM2.5(µg/m³) | 5.10 | 50.20 |
| PM10(µg/m³) | 6.00 | 55.20 |
| NO₂(µg/m³) | 9.70 | 14.30 |
| SO₂(µg/m³) | 4.50 | 9.50 |
| O₃(µg/m³) | 34.00 | 79.00 |
| CO(µg/m³) | 230.00 | 280.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bangalore averaged an AQI of 74 while Haldia averaged 90 — a 16-point (22%) gap, with Haldia the more polluted and Bangalore the cleaner of the two. On 701 days when both cities reported, Haldia was cleaner on 531 of them; the average daily gap was 61 AQI points.
Seasonality & days
Bangalore peaks in March, while Haldia peaks in December. Bangalore logged 0.5% Severe days and 42.6% Good-or-Satisfactory days; Haldia was 0% Severe and 65.4% Good-or-Satisfactory. Longest clean-air streaks: Bangalore 31 days, Haldia 51 days.
Year-over-year progress
Bangalore has improved by 26 AQI points (26%) from 2016 to 2024; Haldia has worsened by 8 AQI points (9.8%) over the same window. The worst recorded day for Bangalore reached AQI 500 at Silk Board (KSPCB) on 2024-01-10; Haldia hit AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26.
Station-level disparity
Bangalore spans 14 CPCB stations with a 50-point spread (min 49, max 99); Haldia spans 1 stations with a 0-point spread (min 86, max 86).
Verdict
🏆 Bangalore has better air quality with an AQI of 9 compared to Haldia's 84. That's a significant difference of 75 points.