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Haldia vs Hosur

Side-by-side air quality comparison between Haldia and Hosur.

Cleaner right now: Hosur (70-pt gap)

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

Haldia

West Bengal, India

Satisfactory

PM2.5: 46.6 µg/m³

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VS
🏆 Cleaner

Hosur

Tamil Nadu, India

Good

PM2.5: 4.5 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantHaldiaHosur
PM2.5(µg/m³)46.604.50
PM10(µg/m³)51.905.00
NO₂(µg/m³)11.407.50
SO₂(µg/m³)10.404.10
O₃(µg/m³)96.0038.00
CO(µg/m³)284.00140.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Haldia averaged an AQI of 90 while Hosur averaged 90 — a 0-point (0%) gap, with Hosur the more polluted and Haldia the cleaner of the two.

Seasonality & days

Both cities see their worst air in December on average. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Hosur was 0% Severe and 73.89999999999999% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Hosur 10 days.

Year-over-year progress

The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Hosur hit AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25.

Station-level disparity

Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Hosur spans 1 stations with a 0-point spread (min 90, max 90).

Verdict

🏆 Hosur has better air quality with an AQI of 8 compared to Haldia's 78. That's a significant difference of 70 points.

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