Gaya vs Vellore
Side-by-side air quality comparison between Gaya 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 | Gaya | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 61.20 | 7.00 |
| PM10(µg/m³) | 73.80 | 8.40 |
| NO₂(µg/m³) | 16.60 | 8.50 |
| SO₂(µg/m³) | 13.20 | 4.30 |
| O₃(µg/m³) | 86.00 | 44.00 |
| CO(µg/m³) | 309.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gaya averaged an AQI of 110 while Vellore averaged 61 — a 49-point (80%) gap, with Gaya the more polluted and Vellore the cleaner of the two. On 302 days when both cities reported, Vellore was cleaner on 291 of them; the average daily gap was 119 AQI points.
Seasonality & days
Gaya peaks in January, while Vellore peaks in December. Gaya logged 1.7% Severe days and 32% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Gaya 52 days, Vellore 23 days.
Year-over-year progress
Gaya has improved by 89 AQI points (44.7%) from 2016 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Gaya reached AQI 500 at Collectorate (BSPCB) on 2016-10-15; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Gaya spans 3 CPCB stations with a 85-point spread (min 88, max 173); 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 Gaya's 105. That's a significant difference of 93 points.