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Bidar vs Hajipur

Side-by-side air quality comparison between Bidar and Hajipur.

Cleaner right now: Bidar (199-pt gap)Historical head-to-head: Bidar cleaner 669/739 daysYoY 20212024: Bidar +1.2% · Hajipur +74.7%

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

Bidar

Karnataka, India

Good

PM2.5: 16.5 µg/m³

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VS

Hajipur

Bihar, India

Poor

PM2.5: 97.8 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantBidarHajipur
PM2.5(µg/m³)16.5097.80
PM10(µg/m³)22.50109.40
NO₂(µg/m³)7.3040.50
SO₂(µg/m³)2.4018.90
O₃(µg/m³)64.0052.00
CO(µg/m³)204.00725.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Bidar averaged an AQI of 85 while Hajipur averaged 173 — a 88-point (104%) gap, with Hajipur the more polluted and Bidar the cleaner of the two. On 739 days when both cities reported, Bidar was cleaner on 669 of them; the average daily gap was 93 AQI points.

Seasonality & days

Bidar peaks in January, while Hajipur peaks in December. Bidar logged 0.1% Severe days and 72.5% Good-or-Satisfactory days; Hajipur was 0.3% Severe and 36.6% Good-or-Satisfactory. Longest clean-air streaks: Bidar 24 days, Hajipur 36 days.

Year-over-year progress

Bidar has worsened by 1 AQI points (1.2%) from 2021 to 2024; Hajipur has worsened by 74 AQI points (74.7%) over the same window. The worst recorded day for Bidar reached AQI 437 at Naubad (KSPCB) on 2022-01-25; Hajipur hit AQI 427 at Industrial Area (BSPCB) on 2024-11-12.

Station-level disparity

Bidar spans 1 CPCB stations with a 0-point spread (min 84, max 84); Hajipur spans 1 stations with a 0-point spread (min 149, max 149).

Verdict

🏆 Bidar has better air quality with an AQI of 28 compared to Hajipur's 227. That's a significant difference of 199 points.

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