Gummidipoondi vs Ramanathapuram
Side-by-side air quality comparison between Gummidipoondi and Ramanathapuram.
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 | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 10.50 | 5.60 |
| PM10(µg/m³) | 12.00 | 8.30 |
| NO₂(µg/m³) | 11.90 | 4.20 |
| SO₂(µg/m³) | 6.80 | 4.00 |
| O₃(µg/m³) | 52.00 | 31.00 |
| CO(µg/m³) | 286.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Ramanathapuram averaged 42 — a 65-point (155%) gap, with Gummidipoondi the more polluted and Ramanathapuram the cleaner of the two. On 557 days when both cities reported, Ramanathapuram was cleaner on 518 of them; the average daily gap was 74 AQI points.
Seasonality & days
Gummidipoondi peaks in November, while Ramanathapuram peaks in January. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Ramanathapuram 46 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 9 compared to Gummidipoondi's 18.