Delhi vs Nagapattinam
Side-by-side air quality comparison between Delhi and Nagapattinam.
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 | Nagapattinam |
|---|---|---|
| PM2.5(µg/m³) | 80.80 | 12.50 |
| PM10(µg/m³) | 143.90 | 16.20 |
| NO₂(µg/m³) | 41.80 | 9.80 |
| SO₂(µg/m³) | 33.00 | 4.10 |
| O₃(µg/m³) | 63.00 | 38.00 |
| CO(µg/m³) | 568.00 | 211.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Nagapattinam averaged 60 — a 150-point (250%) gap, with Delhi the more polluted and Nagapattinam the cleaner of the two. On 47 days when both cities reported, Nagapattinam was cleaner on 47 of them; the average daily gap was 337 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).
Verdict
🏆 Nagapattinam has better air quality with an AQI of 21 compared to Delhi's 170. That's a significant difference of 149 points.