Nagapattinam vs Vellore
Side-by-side air quality comparison between Nagapattinam and Vellore.
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 | Nagapattinam | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 12.50 | 7.00 |
| PM10(µg/m³) | 16.20 | 8.40 |
| NO₂(µg/m³) | 9.80 | 8.50 |
| SO₂(µg/m³) | 4.10 | 4.30 |
| O₃(µg/m³) | 38.00 | 44.00 |
| CO(µg/m³) | 211.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nagapattinam averaged an AQI of 60 while Vellore averaged 61 — a 1-point (2%) gap, with Vellore the more polluted and Nagapattinam the cleaner of the two. On 35 days when both cities reported, Nagapattinam was cleaner on 24 of them; the average daily gap was 26 AQI points.
Seasonality & days
Nagapattinam peaks in November, while Vellore peaks in December. Nagapattinam logged 0% Severe days and 91.5% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Nagapattinam 8 days, Vellore 23 days.
Year-over-year progress
The worst recorded day for Nagapattinam reached AQI 113 at Velippalayam (TNPCB) on 2024-12-16; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Nagapattinam spans 1 CPCB stations with a 0-point spread (min 60, max 60); Vellore spans 1 stations with a 0-point spread (min 70, max 70).
Verdict
🏆 Vellore has better air quality with an AQI of 12 compared to Nagapattinam's 21.