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Bāgalkot vs Purnia

Side-by-side air quality comparison between Bāgalkot and Purnia.

Cleaner right now: Bāgalkot (238-pt gap)Historical head-to-head: Bāgalkot cleaner 826/857 daysYoY 20202024: Bāgalkot -35.6% · Purnia -55.1%

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

Bāgalkot

Karnataka, India

Good

PM2.5: 7.9 µg/m³

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VS

Purnia

Bihar, India

Poor

PM2.5: 105.9 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantBāgalkotPurnia
PM2.5(µg/m³)7.90105.90
PM10(µg/m³)14.70109.00
NO₂(µg/m³)5.7025.20
SO₂(µg/m³)1.6020.10
O₃(µg/m³)44.0067.00
CO(µg/m³)164.00707.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Bāgalkot averaged an AQI of 47 while Purnia averaged 133 — a 86-point (183%) gap, with Purnia the more polluted and Bāgalkot the cleaner of the two. On 857 days when both cities reported, Bāgalkot was cleaner on 826 of them; the average daily gap was 129 AQI points.

Seasonality & days

Both cities see their worst air in January on average. Bāgalkot logged 0% Severe days and 96.3% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Bāgalkot 109 days, Purnia 14 days.

Year-over-year progress

Bāgalkot has improved by 26 AQI points (35.6%) from 2020 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Bāgalkot reached AQI 242 at Vidayagiri (KSPCB) on 2020-11-01; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.

Station-level disparity

Bāgalkot spans 1 CPCB stations with a 0-point spread (min 50, max 50); Purnia spans 1 stations with a 0-point spread (min 176, max 176).

Verdict

🏆 Bāgalkot has better air quality with an AQI of 15 compared to Purnia's 253. That's a significant difference of 238 points.

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