Delhi vs Ramanathapuram
Side-by-side air quality comparison between Delhi 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 | Delhi | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 80.80 | 5.60 |
| PM10(µg/m³) | 143.90 | 8.30 |
| NO₂(µg/m³) | 41.80 | 4.20 |
| SO₂(µg/m³) | 33.00 | 4.00 |
| O₃(µg/m³) | 63.00 | 31.00 |
| CO(µg/m³) | 568.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Ramanathapuram averaged 42 — a 168-point (400%) gap, with Delhi the more polluted and Ramanathapuram the cleaner of the two. On 719 days when both cities reported, Ramanathapuram was cleaner on 716 of them; the average daily gap was 259 AQI points.
Seasonality & days
Delhi peaks in November, while Ramanathapuram peaks in January. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Ramanathapuram 46 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); 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 Delhi's 170. That's a significant difference of 161 points.