Dindigul vs Vellore
Side-by-side air quality comparison between Dindigul 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 | Dindigul | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 18.20 | 8.00 |
| PM10(µg/m³) | 19.70 | 10.00 |
| NO₂(µg/m³) | 28.00 | 11.40 |
| SO₂(µg/m³) | 2.70 | 4.50 |
| O₃(µg/m³) | 1.00 | 41.00 |
| CO(µg/m³) | 215.00 | 175.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Vellore averaged 61 — a 0-point (0%) gap, with Vellore the more polluted and Dindigul the cleaner of the two. On 131 days when both cities reported, Dindigul was cleaner on 70 of them; the average daily gap was 47 AQI points.
Seasonality & days
Dindigul peaks in February, while Vellore peaks in December. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Vellore 23 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); Vellore spans 1 stations with a 0-point spread (min 70, max 70).
Verdict
🏆 Vellore has better air quality with an AQI of 13 compared to Dindigul's 30.