Korba vs Vellore
Side-by-side air quality comparison between Korba 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 | Korba | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 48.10 | 7.00 |
| PM10(µg/m³) | 56.60 | 8.40 |
| NO₂(µg/m³) | 15.00 | 8.50 |
| SO₂(µg/m³) | 20.40 | 4.30 |
| O₃(µg/m³) | 86.00 | 44.00 |
| CO(µg/m³) | 325.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Korba averaged an AQI of 67 while Vellore averaged 61 — a 6-point (10%) gap, with Korba the more polluted and Vellore the cleaner of the two. On 249 days when both cities reported, Vellore was cleaner on 141 of them; the average daily gap was 36 AQI points.
Seasonality & days
Korba peaks in January, while Vellore peaks in December. Korba logged 0% Severe days and 78.8% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Korba 83 days, Vellore 23 days.
Year-over-year progress
Korba has improved by 19 AQI points (22.1%) from 2022 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Korba reached AQI 313 at Urja Nagar (CECB) on 2023-01-04; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Korba spans 2 CPCB stations with a 13-point spread (min 62, max 75); 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 Korba's 81. That's a significant difference of 69 points.