Kota vs Salem
Side-by-side air quality comparison between Kota 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Kota | Salem |
|---|---|---|
| PM2.5(µg/m³) | 23.30 | 13.70 |
| PM10(µg/m³) | 36.10 | 16.40 |
| NO₂(µg/m³) | 6.10 | 15.30 |
| SO₂(µg/m³) | 7.50 | 9.30 |
| O₃(µg/m³) | 62.00 | 37.00 |
| CO(µg/m³) | 191.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kota averaged an AQI of 131 while Salem averaged 68 — a 63-point (93%) gap, with Kota the more polluted and Salem the cleaner of the two. On 205 days when both cities reported, Salem was cleaner on 195 of them; the average daily gap was 89 AQI points.
Seasonality & days
Kota peaks in November, while Salem peaks in April. Kota logged 0% Severe days and 40.599999999999994% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Kota 89 days, Salem 17 days.
Year-over-year progress
Kota has improved by 45 AQI points (25.6%) from 2017 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Kota reached AQI 375 at Shrinath Puram (RSPCB) on 2021-11-14; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Kota spans 3 CPCB stations with a 9-point spread (min 121, max 130); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Salem has better air quality with an AQI of 23 compared to Kota's 39.