Siwan vs Tirumala
Side-by-side air quality comparison between Siwan and Tirumala.
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 | Siwan | Tirumala |
|---|---|---|
| PM2.5(µg/m³) | 108.00 | 5.30 |
| PM10(µg/m³) | 122.50 | 6.60 |
| NO₂(µg/m³) | 59.80 | 6.90 |
| SO₂(µg/m³) | 14.10 | 2.00 |
| O₃(µg/m³) | 4.00 | 55.00 |
| CO(µg/m³) | 856.00 | 149.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Siwan averaged an AQI of 148 while Tirumala averaged 89 — a 59-point (66%) gap, with Siwan the more polluted and Tirumala the cleaner of the two.
Seasonality & days
Siwan peaks in January, while Tirumala peaks in November. Siwan logged 5.2% Severe days and 17.7% Good-or-Satisfactory days; Tirumala was 0% Severe and 65.8% Good-or-Satisfactory. Longest clean-air streaks: Siwan 13 days, Tirumala 39 days.
Year-over-year progress
The worst recorded day for Siwan reached AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30; Tirumala hit AQI 173 at Toll Gate (APPCB) on 2016-12-30.
Station-level disparity
Siwan spans 1 CPCB stations with a 0-point spread (min 197, max 197); Tirumala spans 1 stations with a 0-point spread (min 89, max 89).
Verdict
🏆 Tirumala has better air quality with an AQI of 9 compared to Siwan's 260. That's a significant difference of 251 points.