Hosur vs Salem
Side-by-side air quality comparison between Hosur 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 2022, Hosur averaged an AQI of 90 while Salem averaged 68 — a 22-point (32%) gap, with Hosur the more polluted and Salem the cleaner of the two. On 39 days when both cities reported, Salem was cleaner on 34 of them; the average daily gap was 30 AQI points.
Seasonality & days
Hosur peaks in December, while Salem peaks in April. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Salem 17 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Salem spans 1 stations with a 0-point spread (min 73, max 73).