Kanchipuram vs Salem
Side-by-side air quality comparison between Kanchipuram 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, Kanchipuram averaged an AQI of 51 while Salem averaged 68 — a 17-point (33%) gap, with Salem the more polluted and Kanchipuram the cleaner of the two. On 198 days when both cities reported, Kanchipuram was cleaner on 141 of them; the average daily gap was 28 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Salem peaks in April. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Salem 17 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Salem spans 1 stations with a 0-point spread (min 73, max 73).