Gwalior vs Salem
Side-by-side air quality comparison between Gwalior 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, Gwalior averaged an AQI of 136 while Salem averaged 68 — a 68-point (100%) gap, with Gwalior the more polluted and Salem the cleaner of the two. On 206 days when both cities reported, Salem was cleaner on 198 of them; the average daily gap was 122 AQI points.
Seasonality & days
Gwalior peaks in November, while Salem peaks in April. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Salem 17 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Salem spans 1 stations with a 0-point spread (min 73, max 73).