Tālcher vs Vellore
Side-by-side air quality comparison between Tālcher 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2023, Tālcher averaged an AQI of 127 while Vellore averaged 61 — a 66-point (108%) gap, with Tālcher the more polluted and Vellore the cleaner of the two. On 117 days when both cities reported, Vellore was cleaner on 103 of them; the average daily gap was 80 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Tālcher logged 0.2% Severe days and 43.1% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Tālcher 44 days, Vellore 23 days.
Year-over-year progress
Tālcher has improved by 63 AQI points (33.2%) from 2018 to 2023; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Tālcher reached AQI 414 at Talcher (OSPCB) on 2018-11-27; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Tālcher spans 1 CPCB stations with a 0-point spread (min 132, max 132); Vellore spans 1 stations with a 0-point spread (min 70, max 70).