Arrah vs Indore
Side-by-side air quality comparison between Arrah and Indore.
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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Arrah | Indore |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 31.30 |
| PM10(µg/m³) | 117.10 | 47.80 |
| NO₂(µg/m³) | 42.70 | 7.10 |
| SO₂(µg/m³) | 15.30 | 15.10 |
| O₃(µg/m³) | 46.00 | 66.00 |
| CO(µg/m³) | 841.00 | 251.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Indore averaged 84 — a 39-point (46%) gap, with Arrah the more polluted and Indore the cleaner of the two. On 556 days when both cities reported, Indore was cleaner on 316 of them; the average daily gap was 68 AQI points.
Seasonality & days
Arrah peaks in January, while Indore peaks in November. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Indore was 0% Severe and 45.099999999999994% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Indore 65 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Indore has improved by 47 AQI points (35.9%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Indore hit AQI 359 at Maguda Nagar (IMC) on 2024-09-18.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Indore spans 6 stations with a 69-point spread (min 52, max 121).
Verdict
🏆 Indore has better air quality with an AQI of 53 compared to Arrah's 244. That's a significant difference of 191 points.