Salem vs Tonk
Side-by-side air quality comparison between Salem and Tonk.
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, Salem averaged an AQI of 68 while Tonk averaged 142 — a 74-point (109%) gap, with Tonk the more polluted and Salem the cleaner of the two. On 277 days when both cities reported, Salem was cleaner on 252 of them; the average daily gap was 87 AQI points.
Seasonality & days
Salem peaks in April, while Tonk peaks in November. Salem logged 0% Severe days and 87.1% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Salem 17 days, Tonk 11 days.
Year-over-year progress
Salem has improved by 5 AQI points (6.8%) from 2022 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Salem reached AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Salem spans 1 CPCB stations with a 0-point spread (min 73, max 73); Tonk spans 1 stations with a 0-point spread (min 148, max 148).