Thanjavur vs Vellore
Side-by-side air quality comparison between Thanjavur 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, Thanjavur averaged an AQI of 42 while Vellore averaged 61 — a 19-point (45%) gap, with Vellore the more polluted and Thanjavur the cleaner of the two. On 55 days when both cities reported, Thanjavur was cleaner on 44 of them; the average daily gap was 36 AQI points.
Seasonality & days
Thanjavur peaks in November, while Vellore peaks in December. Thanjavur logged 0% Severe days and 98.60000000000001% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Thanjavur 21 days, Vellore 23 days.
Year-over-year progress
The worst recorded day for Thanjavur reached AQI 140 at Parisutham Nagar (TNPCB) on 2024-11-01; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Thanjavur spans 1 CPCB stations with a 0-point spread (min 42, max 42); Vellore spans 1 stations with a 0-point spread (min 70, max 70).