Ambala vs Ramanathapuram
Side-by-side air quality comparison between Ambala 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 | Ambala | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 44.90 | 5.60 |
| PM10(µg/m³) | 117.80 | 8.30 |
| NO₂(µg/m³) | 13.20 | 4.20 |
| SO₂(µg/m³) | 11.50 | 4.00 |
| O₃(µg/m³) | 100.00 | 31.00 |
| CO(µg/m³) | 547.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Ramanathapuram averaged 42 — a 52-point (124%) gap, with Ambala the more polluted and Ramanathapuram the cleaner of the two. On 642 days when both cities reported, Ramanathapuram was cleaner on 584 of them; the average daily gap was 68 AQI points.
Seasonality & days
Ambala peaks in November, while Ramanathapuram peaks in January. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Ramanathapuram 46 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); 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 Ambala's 113. That's a significant difference of 104 points.