Patna vs Puducherry
Side-by-side air quality comparison between Patna and Puducherry.
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 Puducherry averaged 55 — a 117-point (213%) gap, with Patna the more polluted and Puducherry the cleaner of the two. On 1376 days when both cities reported, Puducherry was cleaner on 1362 of them; the average daily gap was 183 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; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Patna 30 days, Puducherry 117 days.
Year-over-year progress
Patna has improved by 40 AQI points (18.9%) from 2016 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Patna reached AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Patna spans 6 CPCB stations with a 39-point spread (min 154, max 193); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).