Davanagere vs Salem
Side-by-side air quality comparison between Davanagere and Salem.
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 | Davanagere | Salem |
|---|---|---|
| PM2.5(µg/m³) | 7.30 | 13.70 |
| PM10(µg/m³) | 9.70 | 16.40 |
| NO₂(µg/m³) | 6.50 | 15.30 |
| SO₂(µg/m³) | 2.00 | 9.30 |
| O₃(µg/m³) | 35.00 | 37.00 |
| CO(µg/m³) | 153.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Davanagere averaged an AQI of 57 while Salem averaged 68 — a 11-point (19%) gap, with Salem the more polluted and Davanagere the cleaner of the two. On 328 days when both cities reported, Davanagere was cleaner on 239 of them; the average daily gap was 27 AQI points.
Seasonality & days
Davanagere peaks in March, while Salem peaks in April. Davanagere logged 0% Severe days and 89.6% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Davanagere 35 days, Salem 17 days.
Year-over-year progress
Davanagere has worsened by 5 AQI points (9.6%) from 2021 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Davanagere reached AQI 233 at Devaraj Urs Badavane (KSPCB) on 2023-11-15; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Davanagere spans 1 CPCB stations with a 0-point spread (min 57, max 57); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Davanagere has better air quality with an AQI of 12 compared to Salem's 23.