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Arrah vs Nayāgarh

Side-by-side air quality comparison between Arrah and Nayāgarh.

Cleaner right now: Nayāgarh (170-pt gap)Historical head-to-head: Nayāgarh cleaner 337/493 daysYoY 20212024: Arrah -58.7% · Nayāgarh -32.9%

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

Arrah

Bihar, India

Poor

PM2.5: 102.9 µg/m³

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VS
🏆 Cleaner

Nayāgarh

Odisha, India

Satisfactory

PM2.5: 43.9 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantArrahNayāgarh
PM2.5(µg/m³)102.9043.90
PM10(µg/m³)117.1048.80
NO₂(µg/m³)42.7010.80
SO₂(µg/m³)15.308.30
O₃(µg/m³)46.0079.00
CO(µg/m³)841.00439.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Arrah averaged an AQI of 123 while Nayāgarh averaged 98 — a 25-point (26%) gap, with Arrah the more polluted and Nayāgarh the cleaner of the two. On 493 days when both cities reported, Nayāgarh was cleaner on 337 of them; the average daily gap was 74 AQI points.

Seasonality & days

Arrah peaks in January, while Nayāgarh peaks in April. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Nayāgarh was 0% Severe and 47.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Nayāgarh 52 days.

Year-over-year progress

Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Nayāgarh has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Nayāgarh hit AQI 336 at Dabuna (OSPCB) on 2023-03-13.

Station-level disparity

Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Nayāgarh spans 1 stations with a 0-point spread (min 116, max 116).

Verdict

🏆 Nayāgarh has better air quality with an AQI of 74 compared to Arrah's 244. That's a significant difference of 170 points.

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