Bihar Sharif vs Vellore
Side-by-side air quality comparison between Bihar Sharif 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 | Bihar Sharif | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 7.00 |
| PM10(µg/m³) | 79.40 | 8.40 |
| NO₂(µg/m³) | 27.20 | 8.50 |
| SO₂(µg/m³) | 14.60 | 4.30 |
| O₃(µg/m³) | 64.00 | 44.00 |
| CO(µg/m³) | 543.00 | 141.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Vellore averaged 61 — a 54-point (89%) gap, with Bihar Sharif the more polluted and Vellore the cleaner of the two. On 240 days when both cities reported, Vellore was cleaner on 197 of them; the average daily gap was 67 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Vellore 23 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); 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 Bihar Sharif's 140. That's a significant difference of 128 points.