Haldia vs Hyderabad
Side-by-side air quality comparison between Haldia and Hyderabad.
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 | Hyderabad |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 20.50 |
| PM10(µg/m³) | 51.90 | 27.90 |
| NO₂(µg/m³) | 11.40 | 10.40 |
| SO₂(µg/m³) | 10.40 | 5.30 |
| O₃(µg/m³) | 96.00 | 63.00 |
| CO(µg/m³) | 284.00 | 281.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Hyderabad averaged 78 — a 12-point (15%) gap, with Haldia the more polluted and Hyderabad the cleaner of the two. On 359 days when both cities reported, Haldia was cleaner on 285 of them; the average daily gap was 59 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Hyderabad was 0.2% Severe and 41.6% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Hyderabad 71 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Hyderabad has improved by 24 AQI points (23.5%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Hyderabad hit AQI 500 at Sanathnagar (TSPCB) on 2024-04-28.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Hyderabad spans 14 stations with a 35-point spread (min 62, max 97).
Verdict
🏆 Hyderabad has better air quality with an AQI of 34 compared to Haldia's 78.