Bhilai vs Vellore
Side-by-side air quality comparison between Bhilai 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 | Bhilai | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 46.40 | 7.00 |
| PM10(µg/m³) | 52.30 | 8.70 |
| NO₂(µg/m³) | 43.70 | 10.40 |
| SO₂(µg/m³) | 70.60 | 4.40 |
| O₃(µg/m³) | 42.00 | 39.00 |
| CO(µg/m³) | 675.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhilai averaged an AQI of 73 while Vellore averaged 61 — a 12-point (20%) gap, with Bhilai the more polluted and Vellore the cleaner of the two. On 258 days when both cities reported, Vellore was cleaner on 205 of them; the average daily gap was 39 AQI points.
Seasonality & days
Bhilai peaks in November, while Vellore peaks in December. Bhilai logged 0% Severe days and 71.6% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Bhilai 119 days, Vellore 23 days.
Year-over-year progress
Bhilai has worsened by 8 AQI points (12.3%) from 2021 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Bhilai reached AQI 288 at Hathkhoj (CECB) on 2023-12-26; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Bhilai spans 3 CPCB stations with a 25-point spread (min 59, max 84); 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 Bhilai's 78. That's a significant difference of 66 points.