Kārwār vs Vellore
Side-by-side air quality comparison between Kārwār 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 | Kārwār | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 6.20 | 7.00 |
| PM10(µg/m³) | 15.80 | 8.40 |
| NO₂(µg/m³) | 0.70 | 8.50 |
| SO₂(µg/m³) | 0.40 | 4.30 |
| O₃(µg/m³) | 56.00 | 44.00 |
| CO(µg/m³) | 98.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kārwār averaged an AQI of 55 while Vellore averaged 61 — a 6-point (11%) gap, with Vellore the more polluted and Kārwār the cleaner of the two. On 134 days when both cities reported, Kārwār was cleaner on 94 of them; the average daily gap was 21 AQI points.
Seasonality & days
Kārwār peaks in January, while Vellore peaks in December. Kārwār logged 0% Severe days and 92.7% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Kārwār 34 days, Vellore 23 days.
Year-over-year progress
Kārwār has improved by 72 AQI points (56.7%) from 2023 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Kārwār reached AQI 222 at KHB Colony (KSPCB) on 2023-12-21; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Kārwār spans 1 CPCB stations with a 0-point spread (min 58, max 58); 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 Kārwār's 16.