Siliguri vs Tirupati
Side-by-side air quality comparison between Siliguri 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 | Siliguri | Tirupati |
|---|---|---|
| PM2.5(µg/m³) | 82.20 | 10.70 |
| PM10(µg/m³) | 105.70 | 11.80 |
| NO₂(µg/m³) | 15.40 | 11.20 |
| SO₂(µg/m³) | 6.50 | 2.50 |
| O₃(µg/m³) | 95.00 | 53.00 |
| CO(µg/m³) | 539.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Siliguri averaged an AQI of 81 while Tirupati averaged 75 — a 6-point (8%) gap, with Siliguri the more polluted and Tirupati the cleaner of the two. On 258 days when both cities reported, Tirupati was cleaner on 146 of them; the average daily gap was 52 AQI points.
Seasonality & days
Siliguri peaks in February, while Tirupati peaks in April. Siliguri logged 0.1% Severe days and 61.8% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Siliguri 180 days, Tirupati 36 days.
Year-over-year progress
Siliguri has improved by 39 AQI points (32.5%) from 2018 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Siliguri reached AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Siliguri spans 1 CPCB stations with a 0-point spread (min 107, max 107); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Tirupati has better air quality with an AQI of 18 compared to Siliguri's 174. That's a significant difference of 156 points.