Udaipur vs Vellore
Side-by-side air quality comparison between Udaipur 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 | Udaipur | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 27.20 | 8.00 |
| PM10(µg/m³) | 42.00 | 10.00 |
| NO₂(µg/m³) | 8.80 | 11.40 |
| SO₂(µg/m³) | 8.40 | 4.50 |
| O₃(µg/m³) | 51.00 | 41.00 |
| CO(µg/m³) | 176.00 | 175.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Udaipur averaged an AQI of 112 while Vellore averaged 61 — a 51-point (84%) gap, with Udaipur the more polluted and Vellore the cleaner of the two. On 302 days when both cities reported, Vellore was cleaner on 270 of them; the average daily gap was 53 AQI points.
Seasonality & days
Udaipur peaks in January, while Vellore peaks in December. Udaipur logged 0% Severe days and 47% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Udaipur 49 days, Vellore 23 days.
Year-over-year progress
Udaipur has improved by 77 AQI points (40.7%) from 2017 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Udaipur reached AQI 348 at Ashok Nagar (RSPCB) on 2021-11-15; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Udaipur spans 1 CPCB stations with a 0-point spread (min 112, max 112); 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 Udaipur's 45.