Salem vs Tirupati
Side-by-side air quality comparison between Salem 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 | Salem | Tirupati |
|---|---|---|
| PM2.5(µg/m³) | 12.70 | 9.00 |
| PM10(µg/m³) | 15.90 | 10.10 |
| NO₂(µg/m³) | 17.00 | 10.20 |
| SO₂(µg/m³) | 7.00 | 2.50 |
| O₃(µg/m³) | 30.00 | 53.00 |
| CO(µg/m³) | 237.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Salem averaged an AQI of 68 while Tirupati averaged 75 — a 7-point (10%) gap, with Tirupati the more polluted and Salem the cleaner of the two. On 249 days when both cities reported, Tirupati was cleaner on 145 of them; the average daily gap was 31 AQI points.
Seasonality & days
Both cities see their worst air in April on average. Salem logged 0% Severe days and 87.1% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Salem 17 days, Tirupati 36 days.
Year-over-year progress
Salem has improved by 5 AQI points (6.8%) from 2022 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Salem reached AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Salem spans 1 CPCB stations with a 0-point spread (min 73, max 73); 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 Salem's 21.