Madurai vs Salem
Side-by-side air quality comparison between Madurai 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Madurai averaged an AQI of 48 while Salem averaged 68 — a 20-point (42%) gap, with Salem the more polluted and Madurai the cleaner of the two. On 39 days when both cities reported, Madurai was cleaner on 35 of them; the average daily gap was 29 AQI points.
Seasonality & days
Madurai peaks in December, while Salem peaks in April. Madurai logged 0% Severe days and 98.7% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Madurai 17 days, Salem 17 days.
Year-over-year progress
The worst recorded day for Madurai reached AQI 105 at Uchapatti (TNPCB) on 2024-11-26; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Madurai spans 1 CPCB stations with a 0-point spread (min 48, max 48); Salem spans 1 stations with a 0-point spread (min 73, max 73).