Sagar vs Vellore
Side-by-side air quality comparison between Sagar 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, Sagar averaged an AQI of 96 while Vellore averaged 61 — a 35-point (57%) gap, with Sagar the more polluted and Vellore the cleaner of the two. On 230 days when both cities reported, Vellore was cleaner on 192 of them; the average daily gap was 56 AQI points.
Seasonality & days
Sagar peaks in November, while Vellore peaks in December. Sagar logged 0% Severe days and 69.9% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Sagar 57 days, Vellore 23 days.
Year-over-year progress
Sagar has worsened by 24 AQI points (33.3%) from 2020 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Sagar reached AQI 347 at Civil Lines (MPPCB) on 2024-12-25; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Sagar spans 2 CPCB stations with a 45-point spread (min 73, max 118); Vellore spans 1 stations with a 0-point spread (min 70, max 70).