Ahmedabad vs Salem
Side-by-side air quality comparison between Ahmedabad 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, Ahmedabad averaged an AQI of 117 while Salem averaged 68 — a 49-point (72%) gap, with Ahmedabad the more polluted and Salem the cleaner of the two. On 393 days when both cities reported, Salem was cleaner on 377 of them; the average daily gap was 90 AQI points.
Seasonality & days
Ahmedabad peaks in November, while Salem peaks in April. Ahmedabad logged 0.1% Severe days and 23.7% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Ahmedabad 25 days, Salem 17 days.
Year-over-year progress
Ahmedabad has worsened by 52 AQI points (80%) from 2016 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Ahmedabad reached AQI 430 at Raikhad (IITM) on 2023-03-17; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Ahmedabad spans 9 CPCB stations with a 44-point spread (min 95, max 139); Salem spans 1 stations with a 0-point spread (min 73, max 73).