Gwalior vs Ramanathapuram
Side-by-side air quality comparison between Gwalior 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 | Gwalior | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 36.10 | 5.40 |
| PM10(µg/m³) | 127.60 | 7.70 |
| NO₂(µg/m³) | 0.30 | 1.10 |
| SO₂(µg/m³) | 5.40 | 2.90 |
| O₃(µg/m³) | 160.00 | 72.00 |
| CO(µg/m³) | 252.00 | 127.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Ramanathapuram averaged 42 — a 94-point (224%) gap, with Gwalior the more polluted and Ramanathapuram the cleaner of the two. On 400 days when both cities reported, Ramanathapuram was cleaner on 374 of them; the average daily gap was 135 AQI points.
Seasonality & days
Gwalior peaks in November, while Ramanathapuram peaks in January. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Ramanathapuram 46 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); 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 Gwalior's 119. That's a significant difference of 110 points.