Gummidipoondi vs Puducherry
Side-by-side air quality comparison between Gummidipoondi and Puducherry.
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 | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 10.50 | 16.40 |
| PM10(µg/m³) | 12.00 | 19.20 |
| NO₂(µg/m³) | 11.90 | 18.50 |
| SO₂(µg/m³) | 6.80 | 8.80 |
| O₃(µg/m³) | 52.00 | 37.00 |
| CO(µg/m³) | 286.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Puducherry averaged 55 — a 52-point (95%) gap, with Gummidipoondi the more polluted and Puducherry the cleaner of the two. On 987 days when both cities reported, Puducherry was cleaner on 830 of them; the average daily gap was 51 AQI points.
Seasonality & days
Gummidipoondi peaks in November, while Puducherry peaks in December. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Puducherry 117 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 18 compared to Puducherry's 27.