Samastipur vs Vellore
Side-by-side air quality comparison between Samastipur 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 | Samastipur | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 118.00 | 8.00 |
| PM10(µg/m³) | 134.60 | 10.00 |
| NO₂(µg/m³) | 61.60 | 11.40 |
| SO₂(µg/m³) | 18.30 | 4.50 |
| O₃(µg/m³) | 5.00 | 41.00 |
| CO(µg/m³) | 837.00 | 175.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Samastipur averaged an AQI of 134 while Vellore averaged 61 — a 73-point (120%) gap, with Samastipur the more polluted and Vellore the cleaner of the two. On 246 days when both cities reported, Vellore was cleaner on 227 of them; the average daily gap was 113 AQI points.
Seasonality & days
Samastipur peaks in January, while Vellore peaks in December. Samastipur logged 1.4% Severe days and 23.400000000000002% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Samastipur 9 days, Vellore 23 days.
Year-over-year progress
Samastipur has improved by 84 AQI points (38.5%) from 2022 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Samastipur reached AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Samastipur spans 1 CPCB stations with a 0-point spread (min 177, max 177); Vellore spans 1 stations with a 0-point spread (min 70, max 70).
Verdict
🏆 Vellore has better air quality with an AQI of 13 compared to Samastipur's 293. That's a significant difference of 280 points.