Ratlam vs Tumkur
Side-by-side air quality comparison between Ratlam and Tumkur.
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 | Ratlam | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 28.60 | 3.70 |
| PM10(µg/m³) | 45.50 | 4.60 |
| NO₂(µg/m³) | 9.50 | 7.70 |
| SO₂(µg/m³) | 16.70 | 1.50 |
| O₃(µg/m³) | 45.00 | 32.00 |
| CO(µg/m³) | 208.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ratlam averaged an AQI of 113 while Tumkur averaged 88 — a 25-point (28%) gap, with Ratlam the more polluted and Tumkur the cleaner of the two. On 513 days when both cities reported, Ratlam was cleaner on 258 of them; the average daily gap was 46 AQI points.
Seasonality & days
Ratlam peaks in November, while Tumkur peaks in December. Ratlam logged 0% Severe days and 46.4% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Ratlam 59 days, Tumkur 20 days.
Year-over-year progress
Ratlam has improved by 19 AQI points (14.4%) from 2018 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Ratlam reached AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Ratlam spans 1 CPCB stations with a 0-point spread (min 103, max 103); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Ratlam's 48.