Kalyān vs Salem
Side-by-side air quality comparison between Kalyān 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, Kalyān averaged an AQI of 95 while Salem averaged 68 — a 27-point (40%) gap, with Kalyān the more polluted and Salem the cleaner of the two. On 197 days when both cities reported, Salem was cleaner on 166 of them; the average daily gap was 54 AQI points.
Seasonality & days
Kalyān peaks in January, while Salem peaks in April. Kalyān logged 0.1% Severe days and 46.4% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Kalyān 78 days, Salem 17 days.
Year-over-year progress
Kalyān has improved by 4 AQI points (4%) from 2019 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Kalyān reached AQI 414 at Khadakpada (MPCB) on 2022-01-24; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Kalyān spans 2 CPCB stations with a 18-point spread (min 98, max 116); Salem spans 1 stations with a 0-point spread (min 73, max 73).