Arrah vs Tirupati
Side-by-side air quality comparison between Arrah and Tirupati.
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 | Tirupati |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 8.70 |
| PM10(µg/m³) | 117.10 | 10.00 |
| NO₂(µg/m³) | 42.70 | 8.40 |
| SO₂(µg/m³) | 15.30 | 2.40 |
| O₃(µg/m³) | 46.00 | 58.00 |
| CO(µg/m³) | 841.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Arrah averaged an AQI of 123 while Tirupati averaged 75 — a 48-point (64%) gap, with Arrah the more polluted and Tirupati the cleaner of the two. On 378 days when both cities reported, Tirupati was cleaner on 309 of them; the average daily gap was 114 AQI points.
Seasonality & days
Arrah peaks in January, while Tirupati peaks in April. Arrah logged 0.2% Severe days and 32.3% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Arrah 11 days, Tirupati 36 days.
Year-over-year progress
Arrah has improved by 175 AQI points (58.7%) from 2021 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Arrah reached AQI 420 at New DM Office (BSPCB) on 2021-12-21; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Arrah spans 1 CPCB stations with a 0-point spread (min 162, max 162); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Tirupati has better air quality with an AQI of 15 compared to Arrah's 244. That's a significant difference of 229 points.