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Gaya vs Hapur

Side-by-side air quality comparison between Gaya and Hapur.

Cleaner right now: Gaya (44-pt gap)Historical head-to-head: Hapur cleaner 1121/1976 daysYoY 20162024: Gaya -44.7% · Hapur -58.1%

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

🏆 Cleaner

Gaya

Bihar, India

Satisfactory

PM2.5: 57.7 µg/m³

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VS

Hapur

Uttar Pradesh, India

Moderate

PM2.5: 71.9 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantGayaHapur
PM2.5(µg/m³)57.7071.90
PM10(µg/m³)67.5097.30
NO₂(µg/m³)19.6036.60
SO₂(µg/m³)12.2011.50
O₃(µg/m³)62.0036.00
CO(µg/m³)427.00589.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Gaya averaged an AQI of 110 while Hapur averaged 142 — a 32-point (29%) gap, with Hapur the more polluted and Gaya the cleaner of the two. On 1976 days when both cities reported, Hapur was cleaner on 1121 of them; the average daily gap was 73 AQI points.

Seasonality & days

Gaya peaks in January, while Hapur peaks in November. Gaya logged 1.7% Severe days and 32% Good-or-Satisfactory days; Hapur was 1.9% Severe and 36.2% Good-or-Satisfactory. Longest clean-air streaks: Gaya 52 days, Hapur 55 days.

Year-over-year progress

Gaya has improved by 89 AQI points (44.7%) from 2016 to 2024; Hapur has improved by 197 AQI points (58.1%) over the same window. The worst recorded day for Gaya reached AQI 500 at Collectorate (BSPCB) on 2016-10-15; Hapur hit AQI 477 at Anand Vihar (UPPCB) on 2019-10-31.

Station-level disparity

Gaya spans 3 CPCB stations with a 85-point spread (min 88, max 173); Hapur spans 1 stations with a 0-point spread (min 159, max 159).

Verdict

🏆 Gaya has better air quality with an AQI of 96 compared to Hapur's 140.

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