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Belgaum vs Bettiah

Side-by-side air quality comparison between Belgaum and Bettiah.

Cleaner right now: Belgaum (231-pt gap)Historical head-to-head: Belgaum cleaner 509/555 daysYoY 20222024: Belgaum -36.3% · Bettiah -36.5%

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

Belgaum

Karnataka, India

Good

PM2.5: 11.1 µg/m³

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VS

Bettiah

Bihar, India

Poor

PM2.5: 105.0 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantBelgaumBettiah
PM2.5(µg/m³)11.10105.00
PM10(µg/m³)19.90116.60
NO₂(µg/m³)6.7041.60
SO₂(µg/m³)1.4013.00
O₃(µg/m³)38.0055.00
CO(µg/m³)113.001389.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Belgaum averaged an AQI of 58 while Bettiah averaged 127 — a 69-point (119%) gap, with Bettiah the more polluted and Belgaum the cleaner of the two. On 555 days when both cities reported, Belgaum was cleaner on 509 of them; the average daily gap was 101 AQI points.

Seasonality & days

Belgaum peaks in January, while Bettiah peaks in November. Belgaum logged 0% Severe days and 84.3% Good-or-Satisfactory days; Bettiah was 3.2% Severe and 32.3% Good-or-Satisfactory. Longest clean-air streaks: Belgaum 71 days, Bettiah 20 days.

Year-over-year progress

Belgaum has improved by 33 AQI points (36.3%) from 2022 to 2024; Bettiah has improved by 73 AQI points (36.5%) over the same window. The worst recorded day for Belgaum reached AQI 248 at Ramteerth Nagar (KSPCB) on 2024-12-14; Bettiah hit AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01.

Station-level disparity

Belgaum spans 1 CPCB stations with a 0-point spread (min 71, max 71); Bettiah spans 1 stations with a 0-point spread (min 173, max 173).

Verdict

🏆 Belgaum has better air quality with an AQI of 20 compared to Bettiah's 251. That's a significant difference of 231 points.

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