Aizawl vs Salem
Side-by-side air quality comparison between Aizawl 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, Aizawl averaged an AQI of 46 while Salem averaged 68 — a 22-point (48%) gap, with Salem the more polluted and Aizawl the cleaner of the two. On 340 days when both cities reported, Aizawl was cleaner on 257 of them; the average daily gap was 39 AQI points.
Seasonality & days
Aizawl peaks in March, while Salem peaks in April. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Salem 17 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Salem spans 1 stations with a 0-point spread (min 73, max 73).