Ahmedabad vs Vellore
Side-by-side air quality comparison between Ahmedabad 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 | Ahmedabad | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 22.60 | 8.00 |
| PM10(µg/m³) | 36.90 | 10.00 |
| NO₂(µg/m³) | 7.00 | 11.40 |
| SO₂(µg/m³) | 4.70 | 4.50 |
| O₃(µg/m³) | 40.00 | 41.00 |
| CO(µg/m³) | 159.00 | 175.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ahmedabad averaged an AQI of 117 while Vellore averaged 61 — a 56-point (92%) gap, with Ahmedabad the more polluted and Vellore the cleaner of the two. On 303 days when both cities reported, Vellore was cleaner on 284 of them; the average daily gap was 97 AQI points.
Seasonality & days
Ahmedabad peaks in November, while Vellore peaks in December. Ahmedabad logged 0.1% Severe days and 23.7% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Ahmedabad 25 days, Vellore 23 days.
Year-over-year progress
Ahmedabad has worsened by 52 AQI points (80%) from 2016 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Ahmedabad reached AQI 430 at Raikhad (IITM) on 2023-03-17; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Ahmedabad spans 9 CPCB stations with a 44-point spread (min 95, max 139); 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 Ahmedabad's 38.