Salem vs Shivamogga
Side-by-side air quality comparison between Salem and Shivamogga.
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 | Shivamogga |
|---|---|---|
| PM2.5(µg/m³) | 13.70 | 6.90 |
| PM10(µg/m³) | 16.40 | 9.10 |
| NO₂(µg/m³) | 15.30 | 5.20 |
| SO₂(µg/m³) | 9.30 | 1.90 |
| O₃(µg/m³) | 37.00 | 35.00 |
| CO(µg/m³) | 240.00 | 137.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Salem averaged an AQI of 68 while Shivamogga averaged 55 — a 13-point (24%) gap, with Salem the more polluted and Shivamogga the cleaner of the two. On 384 days when both cities reported, Shivamogga was cleaner on 267 of them; the average daily gap was 27 AQI points.
Seasonality & days
Salem peaks in April, while Shivamogga peaks in February. Salem logged 0% Severe days and 87.1% Good-or-Satisfactory days; Shivamogga was 0% Severe and 97.5% Good-or-Satisfactory. Longest clean-air streaks: Salem 17 days, Shivamogga 233 days.
Year-over-year progress
Salem has improved by 5 AQI points (6.8%) from 2022 to 2024; Shivamogga has improved by 16 AQI points (22.5%) over the same window. The worst recorded day for Salem reached AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15; Shivamogga hit AQI 202 at Vinoba Nagara (KSPCB) on 2021-08-04.
Station-level disparity
Salem spans 1 CPCB stations with a 0-point spread (min 73, max 73); Shivamogga spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Shivamogga has better air quality with an AQI of 12 compared to Salem's 23.