Silchar vs Vellore
Side-by-side air quality comparison between Silchar 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 | Silchar | Vellore |
|---|---|---|
| PM2.5(µg/m³) | 53.00 | 8.00 |
| PM10(µg/m³) | 63.80 | 10.00 |
| NO₂(µg/m³) | 13.90 | 11.40 |
| SO₂(µg/m³) | 7.50 | 4.50 |
| O₃(µg/m³) | 95.00 | 41.00 |
| CO(µg/m³) | 276.00 | 175.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Silchar averaged an AQI of 52 while Vellore averaged 61 — a 9-point (17%) gap, with Vellore the more polluted and Silchar the cleaner of the two. On 237 days when both cities reported, Silchar was cleaner on 144 of them; the average daily gap was 30 AQI points.
Seasonality & days
Silchar peaks in February, while Vellore peaks in December. Silchar logged 0% Severe days and 100% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Silchar 87 days, Vellore 23 days.
Year-over-year progress
Silchar has worsened by 11 AQI points (26.8%) from 2023 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Silchar reached AQI 89 at Tarapur (PCBA) on 2023-04-29; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Silchar spans 1 CPCB stations with a 0-point spread (min 47, max 47); 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 Silchar's 89. That's a significant difference of 76 points.