Gummidipoondi vs Ratlam
Side-by-side air quality comparison between Gummidipoondi and Ratlam.
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 | Gummidipoondi | Ratlam |
|---|---|---|
| PM2.5(µg/m³) | 7.70 | 27.40 |
| PM10(µg/m³) | 10.90 | 51.60 |
| NO₂(µg/m³) | 2.40 | 0.60 |
| SO₂(µg/m³) | 7.40 | 6.00 |
| O₃(µg/m³) | 108.00 | 106.00 |
| CO(µg/m³) | 145.00 | 139.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Ratlam averaged 113 — a 6-point (6%) gap, with Ratlam the more polluted and Gummidipoondi the cleaner of the two. On 953 days when both cities reported, Gummidipoondi was cleaner on 482 of them; the average daily gap was 46 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Ratlam was 0% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Ratlam 59 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Ratlam has improved by 19 AQI points (14.4%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Ratlam hit AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Ratlam spans 1 stations with a 0-point spread (min 103, max 103).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 13 compared to Ratlam's 53.