Puducherry vs Vellore
Side-by-side air quality comparison between Puducherry 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, Puducherry averaged an AQI of 55 while Vellore averaged 61 — a 6-point (11%) gap, with Vellore the more polluted and Puducherry the cleaner of the two. On 297 days when both cities reported, Puducherry was cleaner on 183 of them; the average daily gap was 21 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Puducherry logged 0% Severe days and 95.4% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Puducherry 117 days, Vellore 23 days.
Year-over-year progress
Puducherry has worsened by 1 AQI points (1.9%) from 2021 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Puducherry reached AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Puducherry spans 1 CPCB stations with a 0-point spread (min 56, max 56); Vellore spans 1 stations with a 0-point spread (min 70, max 70).