Tonk vs Vellore
Side-by-side air quality comparison between Tonk 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 | Tonk | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 34.90 | 8.00 |
| PM10(µg/m³) | 75.90 | 10.00 |
| NO₂(µg/m³) | 14.10 | 11.40 |
| SO₂(µg/m³) | 4.50 | 4.50 |
| O₃(µg/m³) | 38.00 | 41.00 |
| CO(µg/m³) | 239.00 | 175.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Tonk averaged an AQI of 142 while Vellore averaged 61 — a 81-point (133%) gap, with Tonk the more polluted and Vellore the cleaner of the two. On 210 days when both cities reported, Vellore was cleaner on 194 of them; the average daily gap was 94 AQI points.
Seasonality & days
Tonk peaks in November, while Vellore peaks in December. Tonk logged 0% Severe days and 28.200000000000003% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Tonk 11 days, Vellore 23 days.
Year-over-year progress
Tonk has improved by 14 AQI points (9%) from 2023 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Tonk reached AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Tonk spans 1 CPCB stations with a 0-point spread (min 148, max 148); 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 Tonk's 76. That's a significant difference of 63 points.