Guwahati vs Ramanathapuram
Side-by-side air quality comparison between Guwahati 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 | Guwahati | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 33.80 | 5.80 |
| PM10(µg/m³) | 37.10 | 8.80 |
| NO₂(µg/m³) | 6.60 | 4.80 |
| SO₂(µg/m³) | 4.00 | 4.10 |
| O₃(µg/m³) | 81.00 | 31.00 |
| CO(µg/m³) | 397.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Ramanathapuram averaged 42 — a 81-point (193%) gap, with Guwahati the more polluted and Ramanathapuram the cleaner of the two. On 716 days when both cities reported, Ramanathapuram was cleaner on 672 of them; the average daily gap was 110 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Ramanathapuram 46 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 10 compared to Guwahati's 57.