Puducherry vs Ramanathapuram
Side-by-side air quality comparison between Puducherry 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 | Puducherry | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 21.20 | 5.40 |
| PM10(µg/m³) | 27.00 | 7.70 |
| NO₂(µg/m³) | 3.80 | 1.10 |
| SO₂(µg/m³) | 12.20 | 2.90 |
| O₃(µg/m³) | 143.00 | 72.00 |
| CO(µg/m³) | 170.00 | 127.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Puducherry averaged an AQI of 55 while Ramanathapuram averaged 42 — a 13-point (31%) gap, with Puducherry the more polluted and Ramanathapuram the cleaner of the two. On 687 days when both cities reported, Ramanathapuram was cleaner on 494 of them; the average daily gap was 21 AQI points.
Seasonality & days
Puducherry peaks in December, while Ramanathapuram peaks in January. Puducherry logged 0% Severe days and 95.4% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Puducherry 117 days, Ramanathapuram 46 days.
Year-over-year progress
Puducherry has worsened by 1 AQI points (1.9%) from 2021 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Puducherry reached AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Puducherry spans 1 CPCB stations with a 0-point spread (min 56, max 56); 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 Puducherry's 35.