Dehradun vs Puducherry
Side-by-side air quality comparison between Dehradun 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, Dehradun averaged an AQI of 106 while Puducherry averaged 55 — a 51-point (93%) gap, with Dehradun the more polluted and Puducherry the cleaner of the two. On 760 days when both cities reported, Puducherry was cleaner on 583 of them; the average daily gap was 51 AQI points.
Seasonality & days
Dehradun peaks in January, while Puducherry peaks in December. Dehradun logged 0% Severe days and 62.8% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Dehradun 41 days, Puducherry 117 days.
Year-over-year progress
Dehradun has worsened by 19 AQI points (21.8%) from 2022 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Dehradun reached AQI 327 at Doon University (UKPCB) on 2024-01-19; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Dehradun spans 1 CPCB stations with a 0-point spread (min 98, max 98); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).