Sirohi vs Vellore
Side-by-side air quality comparison between Sirohi 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 | Sirohi | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 23.50 | 5.50 |
| PM10(µg/m³) | 46.20 | 8.80 |
| NO₂(µg/m³) | 0.80 | 1.10 |
| SO₂(µg/m³) | 3.80 | 2.00 |
| O₃(µg/m³) | 99.00 | 96.00 |
| CO(µg/m³) | 121.00 | 158.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Sirohi averaged an AQI of 89 while Vellore averaged 61 — a 28-point (46%) gap, with Sirohi the more polluted and Vellore the cleaner of the two. On 212 days when both cities reported, Vellore was cleaner on 158 of them; the average daily gap was 39 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Sirohi logged 0% Severe days and 69.2% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Sirohi 41 days, Vellore 23 days.
Year-over-year progress
Sirohi has improved by 4 AQI points (4.3%) from 2023 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Sirohi reached AQI 335 at Vedhaynath Colony (RSPCB) on 2024-12-26; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Sirohi spans 1 CPCB stations with a 0-point spread (min 90, max 90); Vellore spans 1 stations with a 0-point spread (min 70, max 70).
Verdict
🏆 Vellore has better air quality with an AQI of 9 compared to Sirohi's 46.