Perundurai vs Vellore
Side-by-side air quality comparison between Perundurai 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 2024, Perundurai averaged an AQI of 75 while Vellore averaged 61 — a 14-point (23%) gap, with Perundurai the more polluted and Vellore the cleaner of the two. On 32 days when both cities reported, Perundurai was cleaner on 18 of them; the average daily gap was 33 AQI points.
Seasonality & days
Perundurai peaks in November, while Vellore peaks in December. Perundurai logged 0% Severe days and 80.7% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Vellore 23 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Vellore spans 1 stations with a 0-point spread (min 70, max 70).