Patna vs Vellore
Side-by-side air quality comparison between Patna 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, Patna averaged an AQI of 172 while Vellore averaged 61 — a 111-point (182%) gap, with Patna the more polluted and Vellore the cleaner of the two. On 303 days when both cities reported, Vellore was cleaner on 301 of them; the average daily gap was 192 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Patna logged 7.5% Severe days and 19.400000000000002% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Patna 30 days, Vellore 23 days.
Year-over-year progress
Patna has improved by 40 AQI points (18.9%) from 2016 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Patna reached AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Patna spans 6 CPCB stations with a 39-point spread (min 154, max 193); Vellore spans 1 stations with a 0-point spread (min 70, max 70).