Shillong vs Tirupati
Side-by-side air quality comparison between Shillong 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 | Shillong | Tirupati |
|---|---|---|
| PM2.5(µg/m³) | 17.90 | 8.70 |
| PM10(µg/m³) | 21.40 | 10.00 |
| NO₂(µg/m³) | 3.10 | 8.40 |
| SO₂(µg/m³) | 6.20 | 2.40 |
| O₃(µg/m³) | 118.00 | 58.00 |
| CO(µg/m³) | 304.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Shillong averaged an AQI of 75 while Tirupati averaged 75 — a 0-point (0%) gap, with Tirupati the more polluted and Shillong the cleaner of the two. On 164 days when both cities reported, Shillong was cleaner on 88 of them; the average daily gap was 49 AQI points.
Seasonality & days
Shillong peaks in February, while Tirupati peaks in April. Shillong logged 0% Severe days and 92% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Shillong 113 days, Tirupati 36 days.
Year-over-year progress
Shillong has worsened by 41 AQI points (120.6%) from 2019 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Shillong reached AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Shillong spans 2 CPCB stations with a 2-point spread (min 42, max 44); 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 Shillong's 30.